428 motorcycle chain 1)OEM offered 2)hot sale market:india/pakistan/south america etc 3)Advanced production technology Roller chains 1,chain material:40mn2,The roller chain quality have A,B,C three grade3,Original Equipment ManufactureIndustrial chain&Motorcycle chain We are manufacturing all kinds of motorcycle chains ,satandard or OEM are accepted 1)Type :420,420H,428,428H,530,630 and so on2) ...