And, besides punching holes in steel, such a machine could also be used to form shapes out of the metal without the need to use a mould or a die.
并且，除了给钢打洞外，此机器也可以给金属进行塑形而不需要任何模具。
2
The sieve and punching sieve weaved with the imported spring steel, that cannot be clogged and with long operation life.
采用进口弹簧钢编织筛网和冲孔筛板，不会造成堵孔，使用年限长。
3
According to the tractility of Silicon steel sheet, a new processing technics of cutting the narrow-yoke sheet into punching piece and rolling it into motor core was proposed here.