ROLLER CHAIN MANUFACTURER 1.Chain material:40MN,A3,SS304 2.Standard:ISO/DIN/ANSI 3.Manufacturer and OEM are both ... ok! ROLLER CHAIN MANUFACTURER 1.Chain material:40MN,A3,SS3042.Standard ... : SC3,SC4,SC5,SC6,SC8,SC105. PIV chains: A0,A1,A3,A4,A5,A67. Leaf chains: LH series8. Nickel-plated chains ...