punch bowl set
常見例句
- The screw ball and spherical bowl is one important set of punch, of which the quality have significant effects both on the precision and life-span of the punch machine.
帶圓型球頭的螺桿、球碗是鍛壓機床中的重要部件，其質(zhì)量對機床精度、壽命有重大影響。 返回 punch bowl set