Warning: file_put_contents(): Only 0 of 5782 bytes written, possibly out of free disk space in /home/www/wwwroot/zidian/69228.com/index.php on line 55 国产精品视频42页,免费b站推广网站在线
It is mainly consisted of body , bonnet, cushion container, piston chamber, disc valve stem and other parts. 主要由閥體、閥蓋、活塞室、閥瓣、閥桿等組件。
It is mainly consisted of body, connecting pipe cushion container, piston chamber, disc, valve stem and other parts. 主要由閥體、連接管、緩沖容器、活塞室、閥瓣、閥桿等零件組件。 www.tianzheng-valve.com
It has a better reliability with the design improvement of signal tube site and structure, one way valve base, piston surface air chamber and tube connection cap. 采用改進(jìn)的信號管位置結(jié)構(gòu)、單向閥座、活塞端面氣室與接管封帽等后，更有力地提高了產(chǎn)品的可靠性。