The surface of the printing roller is grinded and chrome plate, counter poise emendation, Steady operation.

印刷棍表面研磨，度硬铬，平衡校正，运转平稳。

youdao

The surface of the printing roller is grinded and chrome plate, counter poise emendation, Steady operation.

印刷棍表面研磨，度硬铬，平衡校正，运转平稳。

youdao