Our company has sufitication cogineers, full in spection equipment.The compete procedure of cotter less type crank set is controlled by JISD9415-93 standard.

• 公司技术力量雄厚，制造工艺先进，检测手段完备，方孔曲柄链轮按日本国JISD9415-94标准进行全程控制，品种齐全，适应各种车型使用。