Barter is the present and the future of international trade, especially for people who is starting in the import export business. Barter and more: Triangular operations.
The material of the tights The leggings are basically made of cotton and linen as the base, with nylon and spandex added. Cotton and linen fabrics can increase softness, sweat absorption and comfort, while nylon and spandex fabrics mainly increase the…
The material of the toy car British scientists have shown that the quality of steel pipes is not as good as that of aluminum alloys. Most of the high-view strollers now use imported aluminum alloys as the main part of the stroller. 1. The high-grade…
Material classification of tennis rackets Disadvantages of glass fiber tennis rackets: low mechanical properties; low strength; average damping performance. Advantages: The damping performance is better than that of metal rackets. The price is moderate,…
Carbon fiber material of tennis racket Carbon fiber material is made of some organic fibers (such as nylon, acrylic, rayon, etc.) as raw materials. The organic fibers are placed in rare gas and carbonized under high temperature and high pressure at 2000-3000…
The material of non -woven fabrics Non -woven fabric is a non -woven cloth that directly uses a new fiber product with a soft, breathable and plane structure formed by high polymer slices, short fiber or long wires formed by various fiber mesh methods…
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