Motorcycle chain sprocket set Titan Material, A3 steel, 45# steel,Iron Model:415,420, ... 428,428H,520 Heat treatment motorcycle chain and sprocket set Titan Drawing Packing Detail Motorcycle Sprocket detail ItemMotorcycle sprocket Model428 ... , Galvanized,Cr-plating,Electrophoresis,painting……etcPacking Plastic film, plastic bag, Bubble bag, Color Box, Blister card…… etc Main market South America ...