This is from the definition of non-woven fabrics. A fiber length to diameter ratio of more than 300 is a non-woven fabric, and the fibers of the tissue paper are too short. In fact, the nature is almost the same thing, the paper itself and the non-woven fabrics have an intersection. Wood pulp can also be made into a non-woven fabric, not determined by the material. For example, napkins are made of wood pulp, but they are also a kind of non-woven fabric. The zipper chain is a semi-finished product, sold as a whole roll. After installing the slider and upper and lower stops, cut it to make a finished zipper. The zipper roll contains aluminum Zippers , metal copper zippers, nylon zippers, invisible zippers, plastic zippers.The Metal Zipper roll is about 100 meters per roll, the Nylon zipper and Plastic Zipper are 200yard per roll.
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