Warning: file_put_contents(/www/wwwroot/ppbbbu/5356789.com/cache/1d16723bd00ec8d9b5d1a5f7798a3f2c.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbbu/5356789.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_零六五六深蓝词典
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。