... Zhongding Chain Industries Co., Ltd. is one of the major motorcycle chain and industrial chain manufacturing enterprises and the important export ... and JIS standards. Our major products are as follows: 1. Motorcycle chains 415, 415H, 420, 420H, 428, 428H, 520, 520H, 525 ... quality control system. Our tenet is "to offer the best quality, the best price and perfect services to our customers". If you ...