Baiying wantong da Mechanical and Electrical Equipment Co., Ltd. is a professional manufacture sale flange safety cover,leakproof valve cover. The main products such as leakproof cover are widely used in chemical industry, petroleum, smelting industry ...

Zhengzhou chuan shan pipeline equipment Co., LTD. Is located in central China\'s henan province\'s provincial capital, zhengzhou has six satellite city, the shaolin temple is one of -deng feng. LTD its own factory and laboratory, for many years rubber pipes ...

Shanghai Aogong Valve Co.,ltd is a professional IMP & EXP company which was established in 1992. We have full experience designing, manufacturing, checking of valves. And we staffs to solve your problems about Our aim " Customer\' needs first, Quality ...

Tangshan Hongyuan Valve Industry Co.,Ltd is a professional valves maker in China. The products include butterfly valve, check ball globe gate balancing valve etc. materials covers from cast iron, steel, forged steel to bronze and brass etc.Besides, we have ...