Adopts ISO3512 to design & manufacture.We can supply quality heavy duty cranked link Roller chain. Roller chain 2010, Roller chain 2540, Roller chain 2512,Roller chain 2814, Roller chain 3214, Roller chain 3315, Roller chain 3618, Roller chain 4020, Roller chain MXS882,Roller chain MXS3075,Roller chain MXS1242 specifications available