Warning: file_put_contents(): Only 0 of 4944 bytes written, possibly out of free disk space in /www/wwwroot/ppbbu/cp667.com/index.php on line 55 crank punch press例句_crank punch press英汉例句_crank punch press双解例句_淳朴汉英词典
This paper described work principle and structure design of side cut punch composite mold and assembly testing requirements using the crank press machine. 介绍了在曲柄压力机上切边冲孔的复合模结构设计、工作原理及装配和调试要求等。