... steel 2. carbonized harden 3. competitive price S Type Agriculture Tractor chain1)Model numbers:S type agriclutural chain: S32, S42, S52, S52L, ... , SD, K39M, C6E, C11E, CPE2)Colors available:natural,yellow,blue,gold,black3)Materials:carbon steel,nickel-plated,zinc plated,copper ... to china laws and regulations , also it will be clearly display in the full report >> Production Capacity: Product line name ...