Warning: file_put_contents(): Only 0 of 6116 bytes written, possibly out of free disk space in /home/www/wwwroot/zidian/001308.com/index.php on line 55 ejector valve例句_ejector valve英汉例句_ejector valve双解例句_零食美味英文词典
The working process for cold extruding of valve-spring base has been described, with a new die structure using ejector turning of itself. 介紹了氣門彈簧座的冷擠壓工藝和新型模具結搆。