九线拉王一般要压几线china valve manufacturer jonloo supplies high pressure gate valve 2500lb wc6 material with gear features simple structure, easy operation streamline shape, excellent regulation performance zero leakage, long service life valve disc is connected with stem without pin replaceable seat, bi-directional seal http://www.jonloovalves.com/
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|Company :||Jonloo Valve Manufacturer Company|
|Address :||Zhangbao Industrial Zone, Yongjia Oubei, Wenzhou City, Zhejiang Province, China.|