... 03mm 3. pin diameter: 5.08mm Zhejiang Zhongding Chain Industries Co., Ltd. is one of the major motorcycle chain and industrial chain ... JIS standards. Our major products are as follows: 1. Motorcycle chains 415, 415H, 420, 420H, 428, 428H, 520, 520H, 525, ... series; LL series; AL series 4. Conveyor Chains Short Pitch Conveyor Chains; Double Pitch Conveyor Chains We have advanced technology and a perfect ...