ã€China Trolley Trading Network Trolley box transactions and trade information exchange to provide an excellent platform to improve the level of commodity exchange, standardize the behavior of commodity trading, to achieve ultra-large-scale network operators. 】 Compared with the wallet, briefcase, trolley production process is relatively complicated, there are many structural terms. The following specific inventory trolley luggage a few structural terms. First, the fabric is divided into natural leather fabrics, nylon material, canvas, PU leather, PVC material, plush fabric and so on. 1, natural leather, leather and split layer of the second layer of skin, the first layer of skin is made of some complete high quality animal skin, used to make high profile package fabric; second layer of skin is some animal skin and animal skin The lowest layer of material processing, used to make low-grade package of fabric. 2, nylon material and canvas nylon material and canvas quality depends mainly on the fabric's "density", there is knowledge of the apparel industry will identify their good or bad. 3, PU leather and PVC material PU leather and PVC material are artificial leather, PU leather material is better than the PVC material, the quality of artificial leather in addition to the material has a great relationship with the production process, the color of leather, feel and some special Shu effect depends on the production process. Some make very good artificial leather, the price is very expensive. 4, plush material mainly to see plush wool or wool-like, the feel can be identified by the feel of real hair like touching the same feel of the cat's body. Second, the body bag body structure is generally three. 1, the outside is fabric. 2, the middle layer is the end of the bottom of PVC or cardboard, sponge, light plastic, plastic back, non-woven and paper bran paper and other materials, the general feel can be identified by hand, feel hard sticky cardboard or thick PVC, The sticky is the back of plastic, paper branded paper or softer PVC, softer sticky is the light plastic, non-woven or sponge. 3, the innermost layer is the lining, lined with commonly used nylon material, cotton and satin and so on. Third, the shoulder strap straps fabric is generally made of bags of fabric or ingredients, the structure is positive and negative, the middle sticky layer of bottom PVC or paper bran paper. Strap and the bag body is generally linked to the hook or circle of hardware, metal hooks and the general convergence of the two parts of the spring is more likely to be bad, when to buy a lot of attention to the bag. Fourth, the outside of the car body bags are generally used 20 # thick nylon line, the internal is generally used 40 # thin nylon line, the liner are generally used in cotton. Each part of the car line color and fabric color match, visually coordinated. Five, metal hardware generally divided by material "wire" and "alloy" two. Alloy material from the technical point of view the effect of the metal than the iron wire to look beautiful, iron wire hardware appears to be more rough. The alloy is more expensive than the wire, but sometimes it has not been used for a long time the surface of the metal skin began to fall off, this is the hardware production did not "seal oil" reason, no oil seal hardware is very easy oxidation and rust. Sixth, pocket zipper zipper consists of three parts: zipper, slider and pull the card. Zipper on both sides of the material are generally nylon, zipper teeth in the middle of the main points of plastic teeth and two kinds of metal teeth. How to identify the zipper is good or bad? 1, pull the slider several times to see if the slider and zipper connection is smooth. 2, to see whether the zipper teeth off. 3, to see the pull between the licensing and the gap between the slider, the gap larger, then pull the card will easily break off. 4, after tightening the zipper, bending part of the zipper, the intensity can be a little larger, bending at the same time to see whether the cracks. Seven, side oil bag body fabric, shoulder straps, bagging mouth are painted with the same color as the above part of the edge of the oil. The effect of good edge oil is coated with a smooth feel, a more "soft" sense of color, and fabrics with coordination. The most important thing is that edge oil is afraid of cracking due to seasonal temperature contrast. To know more trolley information, please pay attention to the Chinese trolley transaction network Posted by: zpengdmjy