... OFFICE BUILDINGMain products as the following1)roller chains: A series(12.7-63.5mm pitches),B series (9.525-50.8mm pitches)and ... heavy series products(19.05-44.45mm pitches)2)motorcycle chains :428,428H,530,530H,630,630H3)short pitch conveyor roller chain ... chains :2040,2050,2060,20805)leaf chains:LH series,AL series6)stainless steel roller chains7)simplex,double,triplex chains If you are ...