Heavy duty cranked-link transmission chain 1. 40Mn, 45Mn quality alloy steel 2. carbonized harden 3. competitive price Heavy duty cranked-link transmission chainBafang is specialized in producing all kinds of standard chains and special chains.chain2010,2510,2510H,2512,2512f2,2814,3214,3315,3618,MXS882,MXS3075, SPECIFICATION:PACKING: Heavy duty cranked-link transmission chain