... ) ompetitive price 3) Stadards:ISO/DIN/ANSI ANSI 120 A series simplex roller chains(24A-1R)1)material : 40mn2)pitch ... packing as your requirementMain products as the following1)roller chains: A series(12.7-50.8mm pitches), ... )motorcycle chains :415,420,428,428H,520,530,630,25,25H3)short pitch conveyor roller chain ... ,SK-24)double pitch transmissions v& conveyor chains :2040,2042,2050,2052,2060,2062,2060H, ...