Warning: file_put_contents(): Only 0 of 6081 bytes written, possibly out of free disk space in /home/www/wwwroot/zidian/201990.com/index.php on line 55 barrel-type casing例句_barrel-type casing英汉例句_barrel-type casing双解例句_耀久九英英词典
New manufacturing method of non-standard flange on barrel type casing is introduced, and cold metal work is detailed. 介绍了筒型压缩机机壳上异型法兰的加工新方法，较详细地介绍了具体的冷加工工艺。