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 car carpet
Nylon, also translated as nylon. The English name Polyamide (referred to as PA) is a general term for thermoplastic resins containing repeating amide groups - [NHCO] - on the main chain of the molecule. Including aliphatic PA, aliphatic-aromatic PA and aromatic PA. Among them, aliphatic PA has many varieties, large output and wide application, and its name is determined by the specific number of carbon atoms of the synthetic monomer. Nylon was developed by the outstanding American scientist Carothers and a scientific research team under his leadership. It is the first synthetic fiber in the world. The appearance of nylon has brought a new look to textiles. Its synthesis is a major breakthrough in the synthetic fiber industry and an important milestone in polymer chemistry.
