国产亚洲午夜精品a一区二区,亚洲午夜久久久久久久久红桃,末成年美女黄网站色大片连接,2019午夜福利1000合集92,日韩成人欧美在线

The equipment is used for cutting roller's end, the center hole processing,and chamfering shaft ends automatically in turn, It adopts hydraulic pressure to clamp tightly, which is trustable and axial positioning, which is accurate. For electrical control, adopt imported “PLC”, which works accurately and with stable performance.