steel wire,chain pin material 1. for chain(04C-24A) 2. ... pin material 20CrMnMo, the diameter is1.8mm-15mm or custom-tailored.Why Choose Us ?1.Zhejiang Jianhong Chain Passing Material Co., Ltd ... material and chain components,such as ribbonfil,chain pin material,chain pin,chain bush,chain plate and so on;4 ... the update quotation accordingly., 20CrMnMo steel wire,chain pin material for chain(04C-24A)