Tianjin Greatwall Flow Valve Co.,ltd,top ranked valve manufacturer in China,manufacturing center of butterfly valves,check valves and strainers,which has worked as OEM manufacturer for the world leading valve companies.
Equipped with over 100 sets of metal processing&cutting ,machining and testing equipments including CNC machines,advanced physio chemical NDT,spectral analysis,mechanical property testing,ultrasonic fault detectors,ultrasonic thickness gags ,also lifting,transportation equipments.
Certified with ISO9001,we strictly follow the standard process of the quality control.
CE/PED certified for European union.
WRAS and ACS certified for drinking water,which is obligatory for the market in UK and France.