China high quality Nylon Roller Chain and Sprocket / Plastic Chain Sprocket by Manufacturer with high quality utworzone przez ep | lis 1, 2022 | Product CatalogMaterial: All PlasticRegular: ISO, DIN8187, DIN8188, ISO , ANSI , JIS,BS. Nonstandard sprocketProduct Variety: NSMaterials Select:: Nylon Plastic Rubberother material: Copper/Brass, Aluminium,Cast iron,Nylon/plastic, and many others.Warmth treatment:...