Double pitch transmission chain 1. 40Mn, 45Mn quality alloy steel 2. carbonized harden 3. competitive price Double pitch transmission chainSpecifications:1)Model numbers: A2040, A2050, A2060, A2080, A2100, 208B, 210B2)Colors available:natural,yellow,blue,black3)Materials:carbon steel,stainless steel4)With attachment of K1,SK1SPECIFICATION:PACKING: Double pitch transmission chain