Anhui Huangshan Chain Drive Co., Ltd. is one of the largest specialist manufacturers of chain in China. Our chains mainly include A & B series of roller chain, flat roof chain, board chain, and other special chains. We are famous for the stainless steel chain, flat chain, and some special chains. Our products are according to ANSI, DIN, BS, and JIS standards, and we passed the certification of ISO9002 in 1997.