Warning: file_put_contents(): Only 0 of 7285 bytes written, possibly out of free disk space in /home/www/wwwroot/ndsq.cn/index.php on line 55 pipe spanner例句_pipe spanner英汉例句_pipe spanner双解例句_开心英文字典_柠咚词
The driving part is superior to that of available pipe bending spanner, and has determined size, high strength and high practicability. 本发明可改善现有的弯管扳手驱动部的套接头 无特定比例的缺点，兼顾结构强度与实用性。 ip.com