Warning: file_put_contents(): Only 0 of 5141 bytes written, possibly out of free disk space in /www/wwwroot/ppbbu/52065.com/index.php on line 55 mining machinery plant例句_mining machinery plant英汉例句_mining machinery plant双解例句_伍贰汉英词典
Model QZ100K drill was developed by the machinery plant, Changsha Institute of Mining Research, With a China National practical new-type patent. QZ100K型潜孔钻机由本院机械厂研制，并已获国家实用新型专利。