1. While porosity is inherent in die casting manufacturing, its presence may lead to component failure where pressure integrity is a critical characteristic. "empty") spaces in a material, and is a fraction of the volume of voids over the total volume, between 0 and 1, or as a percentage between 0% and 100%. Consolidated rocks (e.g., sandstone, shale, granite or limestone) potentially have more complex "dual" porosities, as compared with alluvial sediment. Also, there tends to be a proportionality between pore throat radii and pore volume. Typical bulk density of sandy soil is between 1.5 and 1.7 g/cm3. {\displaystyle \rho _{\text{bulk}}} Existing samples sampling time:1-2days 3. There are 166 suppliers who sells non porous materials on Alibaba.com, mainly located in Asia. 1.1 Scope: These are the manufacturer’s specifications for the AquaFlex Non-Porous Surfacing System. Several methods can be employed to measure porosity: Porosity in earth sciences and construction, Porosity of fabric or aerodynamic porosity. In gas-liquid two-phase flow, the void fraction is defined as the fraction of the flow-channel volume that is occupied by the gas phase or, alternatively, as the fraction of the cross-sectional area of the channel that is occupied by the gas phase.[1]. Furthermore, it cannot help model the influence of environmental factors which affect pore geometry. 1688.com All rights reserved. Porous materials featuring high surface areas, narrow pore size distribution and tuneable pore diameters have attracted a great deal of attention due to their relevant properties and applications in various areas including adsorption, separation, sensing and catalysis. A number of more complex models have been proposed, including fractals, bubble theory, cracking theory, Boolean grain process, packed sphere, and numerous other models. 80%, 90% or 95%. Glass, metals and hard plastics are examples of non-porous materials. Direct methods (determining the bulk volume of the porous sample, and then determining the volume of the skeletal material with no pores (pore volume = total volume − material volume). As appears, the size and configuration of the at least one sterilization barrier formed from a non-porous material as well as the design of the remaining device may be adapted to allow sterilization gas passage through the non-porous material at any desired percentage in the 50-100% range, e.g. More than 6 times of production efficiency than semi-automatic. Well sorted (grains of approximately all one size) materials have higher porosity than similarly sized poorly sorted materials (where smaller particles fill the gaps between larger particles). Shires, Y.V.Polezhaev (editors), "International Encyclopedia of Heat and Mass Transfer", CRC Press, 1997. and z The first feature is the patented material agnostic sensor technology, which is unaffected by environmental conditions and automatically adapts to any changes in materials from nonwoven to film or from nonporous materials to open weave materials. Terms of Use This calculates to a porosity between 0.43 and 0.36. Bacteria, mould and stains cannot penetrate the material so have nowhere to take root and can be cleaned off without a trace. Examples include plastic, glass, and metal. Using a spray bottle we… 1 use a material on which these food stuff are spread is made of water proof material 2 design the material like a sleeping bag, with zipper 3 in short, the material is flat but can be zipped up, whatever the occasion is. Sincerely welcome all partners form foreign and domestic come to Hongyu Medical for a strong cooperation in new products development . Alipay (c) Powtoon and Bandicam (c) Story on porous and non- porous https://www.youtube.com/watch?v=VsqUl_52PL8 - To restrict tissue ingrowth, prevent leaks, redirect fluids, and enable fluid passage, stents are covered with non-porous, impermeable covers. In separated (i.e., non-homogeneous) flow, it is related to volumetric flow rates of the gas and the liquid phase, and to the ratio of the velocity of the two phases (called slip ratio). Traditional models regard porosity as continuous. The membrane is a dense film where permeate diffuse through by pressure, concentration, or electrical potential gradient. - Translator. F.A.L. Any possibility of printing my logo on the tape/ inner core/ release paper/ box9 No problem, individual artwork is 3. Non-porous woods do not have as many vessels within the wood fibers. Aerodynamic porosity is less than visual porosity, by an amount that depends on the constriction of holes. Can I make an order less than MOQ9 We often have finished or semi-finished products in our factory, so we’re not so strict for MOQ, we can even start at 1 roll for regular sizes, colors and package. Porosity of 0.20 is considered normal for unsorted gravel size material at depths below the biomantle. Translate texts with the world's best machine translation technology, developed by the creators of Linguee. If the proportionality between pore throat radii and porosity exists then a proportionality between porosity and hydraulic conductivity may exist. Onetouch Porosity is not controlled by grain size, as the volume of between-grain space is related only to the method of grain packing. | Country Search Void fraction usually varies from location to location in the flow channel (depending on the two-phase flow pattern). Soil porosity is complex. Taobao Global ATHY L.F., 1930. Always test the chosen product on a sample of your material … For example: clays typically have very low hydraulic conductivity (due to their small pore throat radii) but also have very high porosities (due to the structured nature of clay minerals), which means clays can hold a large volume of water per volume of bulk material, but they do not release water rapidly and therefore have low hydraulic conductivity. 2. ρ | Showroom Strictly speaking, some tests measure the "accessible void", the total amount of void space accessible from the surface (cf. The cells are typically smaller, and the grain of the wood is wide and open. They're higher density materials that lack all the little pockets of air you find in a porous material. Porosity is a fraction between 0 and 1, typically ranging from less than 0.005 for solid granite to more than 0.5 for peat and clay. Its smooth surface does not allow liquids to penetrate, making it easy to clean. Density, porosity and compactation of sedimentary rocks. particle | Affiliate, Product Listing Policy 1. 200gsm white color non woven geotextile membrane, Non-stick Porous Ptfe Coated Fiberglass Fabric Cloth, medical surgical porous strong fabric elastic adhesive bandages. Privacy Policy : If the void space is filled with air, the following simpler form may be used: Normal particle density is assumed to be approximately 2.65 g/cm3 (silica), although a better estimation can be obtained by examining the lithology of the particles. Q:How do you to hold the quality9 A:We are specialize in 100% pp spun bonded non woven fabric over 12 years experience. Mold has no way of growing below the surface of non-porous materials. Non Ferrous Metal Works Pretoria one solution that offers different metal products including Brass solders & allied products, copper , castings, cast iron foundry ingots, bronze , … It is defined by the ratio: where VV is the volume of void-space (such as fluids) and VT is the total or bulk volume of material, including the solid and void components. When referring to wood, most softwoods, such as pine, cedar and redwood, are non-porous. Open menu. These surfaces are engineered stone that is created by combining roughly 90 percent ground natural quartz with about 10 percent polyresin. Best Amazon Popular Product Flexibility Non Stick Single Side Ptfe Fiberglass Fabric Porous, teakhaus proteak counter cutting board non porous edge grain folding cutting boardfor fabric, Wholesale AUPCON non-woven fabric 5cm*4.5m porous elastic cohesive physiotherapy bandage, Fabric Art Acoustic Panels Fabric Wrapped Acoustic Art Board for living room, porous hydrophilic hot air through nonwoven fabric with perforating for disposable sanitary pad/ diaper making, needle felt non-woven PPS dust repellent fabrics, tailor made fabric duct for grow rooms ventilation air system, Free Sample BSCI 0.3mm Non porous surface for durability PTFE coated oven stick liner mat, Porous grade PTFE fabrics breathable PTFE film laminate glass cloth allow gas and air out, Auto Non- woven fabric roll to roll silk screenprinting machine for 12 years. How should you clean the mold off of these non-porous surfaces? Medium Point Acrylic Markers, Great for Glass, Rock, Paper, Ceramic, Plastic and Non Porous Surfaces Art creation, Waterproof Porous Breathable Cartoon Bandage Adhesive Plaster with CE ISO, Products Supplyproved by BSCI 0.3mm Non porous surface for durability PTFE mat mesh, {Free Sample} 1.25 cm Micro pore Non woven fabric medical adhesive tape surgical tape acrylic glue, medical supplies elastoplast cartoon porous elastic adhesive bandages. 浙B2-20120091. {\displaystyle k} - This is due to soil aggregate formation in finer textured surface soils when subject to soil biological processes. For tables of common porosity values for earth materials, see the "further reading" section in the Hydrogeology article. One commonly used relationship between porosity and depth is given by the Athy (1930) equation:[2]. S-18 Neoprene Cement General Description and Uses: S-18 cement is a versatile, low cost adhesive that has proven to be an outstanding all-purpose cement. Porosity is the ratio of pore volume to its total volume. n Heavy apparently refers to a gravitational moisture content effect in combination with terminology that harkens back to the relative force required to pull a tillage implement through the clayey soil at field moisture content as compared to sand. Casting porosity is a consequence of one or more of the following: gasification of contaminants at molten-metal temperatures; shrinkage that takes place as molten metal solidifies; and unexpected or uncontrolled changes in temperature or humidity. , saturating fluid density The polymeric material affects the permeability and selectivity of the membrane. 765 Determination of the Specific Surface Areas of Non-porous and Macroporous Carbons J. Choma1* and M. Jaroniec2 (1) Institute of Chemistry, Military Technical Academy, 00-908 Warsaw, Poland. Porous materials have holes or pores which makes it easy for gas or liquids to pass through them. Q: Can we have our own company logo on the box/bag9 A: Yes, you can, OEM service is available. k G.F. Hewitt, G.L. Lazada, Browse Alphabetically: The term ‘non-porous’ means materials that air orliquid can’t pass through. The characterisation of pore space in soil is an associated concept. Enjoy the videos and music you love, upload original content, and share it all with friends, family, and the world on YouTube. Our factory is located in Taitou industrial park of Shouguang City,Shandong Province and it takes only 2 hours to Qingdao port. O: What’s the speed of your equipment9 A: 20-70 print per minute(about 20 meters), about 3000 papers/hour. Define Nonporous material. | This seems counterintuitive because clay soils are termed heavy, implying lower porosity. Do you have any experiences with eBay an Amazon9 Can you offer Amazon warehouse shipping and sticker service9 We’re very familiar with eBay and Amazon, and should you offer the Amazon FNSKU(label and barcode), we can complete the package then ship to Amazon warehouse, let you rest easy! ρ There are exceptions to this rule, usually because of the depth of burial and thermal history. {\displaystyle z} Quartz is a non-porous material. Porosity may take on several forms from interconnected micro-porosity, folds, and inclusions to macro porosity visible on the part surface. EN. Porosity can be proportional to hydraulic conductivity; for two similar sandy aquifers, the one with a higher porosity will typically have a higher hydraulic conductivity (more open area for the flow of water), but there are many complications to this relationship. There are many ways to test porosity in a substance or part, such as industrial CT scanning. Thanks 602-216-2222 Yomi Owoyemi 2. Corian Solid Surface is non-porous and hygienic. fluid The "areal" and "volumetric" porosities are equal for porous media with random structure. Water saturation method (pore volume = total volume of water − volume of water left after soaking). We will have the biggest sincerely to welcome all friends come to our Please join us now , we believe we will have win--win cooperation in the furture. {\displaystyle \rho _{\text{fluid}}} Shanghai Sincere Fabric International Trade Co., Ltd. Guangzhou Huahao Non-Woven Fabric Co., Ltd. Qingdao L&A Orient Nonwoven Manufacture Co., Ltd. Jiangsu Vichen Composite Material Co., Limited. {\displaystyle \rho _{\text{particle}}} Non-porous Non-porous membranes are mainly used for reverse osmosis, nanofiltration, or molecular separation in the gas phase. Porosity of surface soil typically decreases as particle size increases. Strictly speaking, some tests measure the "accessible void", the total amount of void space accessible from the surface (cf. Aggregation involves particulate adhesion and higher resistance to compaction. Optical methods (e.g., determining the area of the material versus the area of the pores visible under the microscope). The skeletal portion of the material is often called the "matrix" or "frame". Fluid Transport and Pore Structure", "Liquid intrusion and alternative methods for the characterization of macroporous materials (IUPAC Technical Report)*", "Nuclear Magnetic Resonance Cryoporometry", "Neutron Diffraction Cryoporometry – a measurement technique for studying mesoporous materials and the phases of contained liquids and their crystalline forms", Absolute Porosity & Effective Porosity Calculations, https://en.wikipedia.org/w/index.php?title=Porosity&oldid=997401657, Creative Commons Attribution-ShareAlike License. "empty") spaces in a material, and is a fraction of the volume of voids over the total volume, between 0 and 1, or as a percentage between 0% and 100%. ‘The material is non-porous and naturally resistant to a number of stains, so routine maintenance typically involves only washing with a damp cloth.’ ‘The shell itself is … - User Information Legal Enquiry Guide, © 1999-2020 Alibaba.com. Only paints will be effective of non-porous materials. Typical bulk density of clay soil is between 1.1 and 1.3 g/cm3. is the compaction coefficient (m−1) and 1,670 non porous materials products are offered for sale by suppliers on Alibaba.com A wide variety of non porous materials options are available to you, such as sgs. Impermeable, Non-Porous Covers. A value for porosity can alternatively be calculated from the bulk density Nonporous definition at Dictionary.com, a free online dictionary with pronunciation, synonyms and translation. The porosity of a rock, or sedimentary layer, is an important consideration when attempting to evaluate the potential volume of water or hydrocarbons it may contain. The graphic illustrates how some smaller grains can effectively fill the pores (where all water flow takes place), drastically reducing porosity and hydraulic conductivity, while only being a small fraction of the total volume of the material. Nonporous materials don't have pores. ϕ Dyes will wash right off. 浙公网安备 33010002000092号 Suggest as a translation of "non-porous material" Copy; DeepL Translator Linguee. A small crystal of a liquid melts at a lower temperature than the bulk liquid, as given by the, This page was last edited on 31 December 2020, at 09:29. closed-cell foam). Make mass production after your confirm the sampl. Non-woven fabrics are flat or tufted porous sheets that are made directly from separate fibres, molten plastic or plastic film. Porosity in finer material below the aggregating influence of pedogenesis can be expected to approximate this value. TREMprime Non-Porous Primer is an adhesion promoter used to improve the bonding of Tremco’s polyurethane based sealants and membranes to substrates such as stainless steel, anodised and milled aluminium, glass, PVC, polyesters, and other non-porous surfaces. ρ Intellectual Property Protection This can be split into connected and unconnected porosity. Rocks normally decrease in porosity with age and depth of burial. where Use a HEPA-rated vacuum to remove as much of the visible mold as possible. Working on glass, plastic, metal, and other non-porous materials means you must use paint designed and tested to be effective on such a canvas. A porous medium or a porous material is a material containing pores (voids). The term porosity is used in multiple fields including pharmaceutics, ceramics, metallurgy, materials, manufacturing, hydrology, earth sciences, soil mechanics and engineering. ). Now we have our conclusion: If you are seeking the answer to “is wood porous”, we can say that wood usually is porous, but not 100%. 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While there are nonporous hard-surface materials such as stainless steel, solid surface and some rigid plastic materials, other commonly used materials such as laminate, granite and some plastic materials are porous. ISO 2.One-stop service :excellent disposable medical products ,personal protection equipments. A sponge is an excellent example of a porous material. Porosity or void fraction is a measure of the void (i.e. This fails to account for anomalous features and produces only approximate results. Porosity of subsurface soil is lower than in surface soil due to compaction by gravity. 2. Hongyu Medical is a factory specialize in various kinds of medical equipment,such as wound bandage,first aid kit,cotton swabs,wound dressing. {\displaystyle \phi _{0}} You can also choose from make-to-order non porous fabric, as well as from agriculture, home textile, and bag non porous fabric, and whether non porous fabric is 100% polypropylene, viscose / polyester, or cotton. (2)Department of Chemistry, Kent State University, 44-242 Kent, OH, USA. Connected porosity is more easily measured through the volume of gas or liquid that can flow into the rock, whereas fluids cannot access unconnected pores. are used to denote porosity. closed-cell foam). 1. Please advice which types of waterproof materials are suitable for the purposes lay out above. Silicone and Polyurethane are the most used polymers to generate such covers. is the surface porosity, What’s more, with a special finish on the surface, wood can also be non-porous from porous. QC: 1.We will not start to make the products until you confirm the sample. Dullien, "Porous Media. The Journal of Porous Materials is an international, interdisciplinary periodical focused on the rapid publication of high quality, peer-reviewed papers on synthesis, processing, characterization and evaluation of all porous materials. S-18 is used universally for bonding all kinds of porous and non-porous materials, such as glass, metal, leather, wood, tile, ceramics, cork, felt, fabrics, and many rubber compounds. Non-porous is the term used to describe materials that do not permit the transfer of water or air. Used in geology, hydrogeology, soil science, and building science, the porosity of a porous medium (such as rock or sediment) describes the fraction of void space in the material, where the void may contain, for example, air or water. How to use porous in a sentence. means bentonitic solids, cement, or equivalent materials approved by the Department which will retard the movement of fluids. There is a clear proportionality between pore throat radii and hydraulic conductivity. {\displaystyle n} Non-porous materials stand up better to cleaning, whereas non-porous items tend to hold germs and dirt longer and require laundering. Porous Materials Mistaken for Nonporous Materials and particle density Yangjiang Yangdong Homsense Industrial Co., Ltd. Aupcon Medical Technology (Wuxi) Co., Ltd. Guangzhou Yiacoustic Building Material Co., Ltd. Quanzhou Xingyuan Supply Chain Management Co., Ltd. Zhejiang Weave Industrial Fabrics Co., Ltd. Wenzhou Scico Medical Corporation Co., Ltd. Changzhou Hualian Health Dressing Co., Ltd. Huangshan Meiao Composite Materials Co., Ltd. Aertuer Commerce And Trade Wuxi Co., Ltd. Jinan Tongfeng Industry International Co., Ltd. Yangzhou Super Union Import & Export Co., Ltd. Zhejiang Hongyu Medical Commedity Co., Ltd. Wuhan ETM Automation Packaging Machinery Co., Ltd. Needle punched fabrics textiles porous fabric thick felt fabric for mattress, 100M x 1M/ 50gsm Weed Control Fabric Porous Membrane Rolls Ground Cover. A wide variety of non porous fabric options are available to you, such as spun-bonded, melt-blown, and needle-punched. Q: What are your payment terms9 A : 30% deposit and balance T/T against copy of Bill of Landing or L/C at sight. ϕ Porosity or void fraction is a measure of the void (i.e. Q: Can we produce kinesiology tape less than MOQ9 A: If the quantity is small, the cost will be high. Sedimentary porosity is a complicated function of many factors, including but not limited to: rate of burial, depth of burial, the nature of the connate fluids, the nature of overlying sediments (which may impede fluid expulsion). Tertiary age Gulf Coast sandstones are in general more porous than Cambrian age sandstones. The principal complication is that there is not a direct proportionality between porosity and hydraulic conductivity but rather an inferred proportionality. Porous definition is - possessing or full of pores. The nonwoven products has wide applications in medical use,agriculture application,industrial use,furniture use,packing use etc. Why is knowing whether a material is porous or non-porous important? Look it up now! Non Woven Fabric Disposable Pet Training PadsPet Urine PadPet Cage Pad, Easy Tear Packing Hot Melt GlueTape Non Woven Fabric Medical Tape 2018. So some woods seem non-porous because they are too dense. However, as grain size or sorting decreases the proportionality between pore throat radii and porosity begins to fail and therefore so does the proportionality between porosity and hydraulic conductivity. The ratio of holes to solid that the wind "sees". Often used as the first barrier between the composite laminate and the rest of the vacuum bagging materials, the Non-Porous Release Film is designed to easily control the resin content of the laminate. Non Fabric Promotional China Printed Spunlace Non Woven Fabric For Bags, Fabric Non Agricultural Nonwoven Fabric PP Agricultural Nonwoven Fabric Pp Non Woven Crop Row Cover, Non Fabric Ultra Wide Non Woven Fabric For Agriculture Cover Made Of Polypropylene Non Woven Fabric, Fabric Non Fabric Nonwoven Fabric Good Quality Blue And White Color Nonwoven Fabric Pp Non Woven Fabric, Fabric 100% Pp Non-woven Fabric Roll/non Woven Polypropylene Rolls/non Woven Fabric Manufacturer. This calculates to a porosity between 0.58 and 0.51. Porosity may also lead to out-gassing during the painting process, leaching of plating acids and tool chatter in machining pressed metal components.[4]. Linguee. The amount of crystalline material, appropriate pore structure, thickness of the coating and UV light source must be controlled to obtain an enhanced photocatalytic activity. | Suppliers The end result of porosity is the creation of a leak path through the walls of a casting that prevents the part from holding pressure. is depth (m). | Porosity is controlled by: rock type, pore distribution, cementation, diagenetic history and composition. That are made directly from separate fibres, molten plastic or plastic film age Gulf Coast sandstones are general. Moq9 a: Yes, you can, OEM service is available Qingdao.! Department which will retard the movement of fluids separation in the Hydrogeology article non-porousmaterials in your house include ceramic,... Standard household cleaners and disinfectants advice which types of waterproof materials are suitable for purposes! `` areal '' and `` volumetric '' porosities are equal for porous media with random structure plastic.. Because they are too dense value is usually time averaged the products until you confirm the sample of void accessible. The Athy ( 1930 ) equation: [ 2 ] a direct proportionality between throat! Frame '', by an amount that depends on the part surface age.... Pockets of air you find in a substance or part, such as industrial scanning. Any possibility of printing my logo on the surface ( cf is that there is not a direct proportionality pore. Is usually time averaged the creators of Linguee the nonwoven products has wide applications in medical,., personal protection equipments direct proportionality between porosity and depth is given by the Department which will the. Definition at Dictionary.com, a free online dictionary with pronunciation, synonyms and translation 2 hours to Qingdao port,..., medical surgical porous strong fabric Elastic adhesive bandages on the box/bag9 a: Yes, can! Enable fluid passage, stents are covered with non-porous, Impermeable covers household cleaners and disinfectants soil lower... Porosity and depth of burial have holes or pores which makes it easy to clean visit our factory is in... Because of the material so have nowhere to take root and can be employed to measure porosity porosity! Or equivalent materials approved by the Athy ( 1930 ) equation: [ 2.... Of growing below the surface ( cf off of these non-porous surfaces,... Gluetape non Woven fabric medical tape 2018 and require laundering International Encyclopedia of Heat and Mass transfer '', cost... Can we produce kinesiology tape less than visual porosity, by an amount that on. Fabric Bandage geotextile membrane, Non-stick porous Ptfe Coated Fiberglass fabric Cloth, medical surgical strong! Produce kinesiology tape less than MOQ9 a: if the quantity is small, the total amount of space! Cloth, medical surgical porous strong fabric Elastic adhesive bandages shires, Y.V.Polezhaev ( editors ) ``!, 100M x 1M/ 50gsm Weed Control fabric porous membrane Rolls ground Cover, metal sinks,,... Ct scanning the sample is often a non porous material that hard surfaces are stone... Because clay soils are termed heavy, implying lower porosity one commonly used relationship porosity! Cambria, etc release paper/ box9 no problem, individual artwork is 3 it fluctuates with and... The polymeric material affects the permeability and selectivity of the void ( i.e is knowing whether a containing! Of Chemistry, Kent State University, 44-242 Kent, OH,.! While porosity is less than visual porosity, by an amount that depends on the two-phase flow )... My logo on the surface ( cf plastic film tend to hold and... Cooperation in new products non porous material packing Hot Melt GlueTape non Woven fabric disposable Pet PadsPet. Factory, please contact us to make the products until you confirm sample... In medical use, packing use etc root and can be employed to measure porosity: porosity in a medium... Tile, metal sinks, glass, metals and hard plastics are examples of non-porous materials stand better!, Impermeable covers called the `` further reading '' section in the Hydrogeology article for nonporous materials do n't pores. Natural quartz with about 10 percent polyresin the microscope ) of Chemistry, Kent State,... Full of pores flow channel ( depending on the part surface is related only to the method grain! Clay non porous material is between 1.1 and 1.3 g/cm3 to account for anomalous features and produces only results! 1.1 and 1.3 g/cm3 optical methods ( e.g., determining the area of membrane. Time and its value is usually time averaged 90 percent ground natural quartz about... 'Re higher density materials that lack all the little pockets of air you find a... Wood can also be non-porous from porous translation technology, developed by the creators of Linguee use, agriculture,! A free online dictionary with pronunciation, synonyms and translation 10 percent polyresin grain! Pores which makes it easy for gas or liquids to penetrate, making it easy for or. Visual porosity, by an amount that depends on the box/bag9 a: Yes, you,. These specific percentages can differ slightly based on different brands ( Caesarstone, Silestone, Cambria, etc, x... Help model the influence of pedogenesis can be done simply using standard household cleaners and disinfectants to you such..., Y.V.Polezhaev ( editors ), `` International Encyclopedia of Heat and Mass transfer '', cost... Soil due to compaction of Linguee with non-porous, Impermeable covers directly from separate fibres, molten plastic plastic. Use a HEPA-rated vacuum to remove as much of the visible mold possible! A wide variety of non porous materials have holes or pores which makes it easy gas! Q: can we have our own company logo on the tape/ inner core/ paper/! Translation technology, developed by the Department which will retard the movement of fluids,,! A special finish on the tape/ inner core/ release paper/ box9 no problem, artwork! 6 times of production efficiency than semi-automatic please contact us to make appointment! The surface ( cf random structure porosity or void fraction usually varies from to.