printed drawstring bags usa backpack

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printed drawstring bags usa backpack
Posting date : Dec 21, 2016
Free Member Scince Dec 19, 2016
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China [CN]
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backpack manufacturers  China SY BACKPACK & BAGS MANUFACTURER, CUSTOM school & laptop & sport & camera backpack, sports_gym bags, custom backpack manufacturers travel bags & handbags, cosmetic_toiletry_makeup bags, duffel bags. Material: leather,nylon,polyester,cotton,microfiber,satin,PVC.   
?PU is a kind of chemical material, only need to modify the formula, can achieve different density, elasticity, rigid physical properties, and PU material bags relative to leather bags, its appearance is more beautiful, easy to clean, its price comparison Low, and high utilization.?Luggage material is a good pc, or pp or pu good?PP and PC are two kinds of plastic materials are all belong to the polymer, all have strong water resistance, abrasion resistance and easy to clean, and PP relative to the PC, the material hardness is relatively strong, can not be Scratches, and PP material is not due to environmental factors and stress cracking problems.?Luggage materials, whether PC, PU, ??or PP, which have their own advantages, there are also their own shortcomings, therefore, luggage production, the choice of materials to make decisions with their own nature. Then if you want to customize high-quality luggage, love is the preferred strength of free luggage manufacturers.
Today, the leather bag is very popular with the public, not only because the leather bag fabric has a soft and delicate feel, but also has the characteristics of waterproof wear. Then the luggage production materials, how to distinguish materials in the production of luggage leather and cowhide leather two kinds of leather material?
Leather, is not tanned animal skins; leather is after tanning, anti-corrosion processing and other procedures made of leather materials. In leather, leather can be divided into the first layer of skin and the second layer of skin, the first layer of skin relative to the second floor of the skin, relatively thin, but the thinner the better the cortex.?
 sport backpack manufacturers

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