所有传动轴、辊材质均为优质钢，高精度动平衡校正，镀硬铬、表面研磨。

All the tra mi ion axle and rollers are made of high-quality steel with high-precision dynamic balance, plated with rigid chrome and grinded surface.

youdao

所有传动轴、辊材质均为优质钢，高精度动平衡校正，镀硬铬、表面研磨。

All the transmission axle and rollers are made of high-quality steel with high-precision dynamic balance, plated with rigid chrome and grinded surface.

youdao

所有传动轴、辊材质均为优质钢，高精度动平衡校正，镀硬铬、表面研磨。

All the transmission axle and rollers are made of high-quality steel with high-precision dynamic balance, plated with rigid chrome and grinded surface.

youdao