Wafer Butterfly Valve, Flange Butterfly Valve, Lt Butterfly Valve manufacturer / supplier in China, offering DIN F4 3352/3202 Non Rising Stem Gate Valve with Heavy/Middle/Light Body, GB/DIN/BS/ANSI/Russian Standard Pn16 Carbon Steel Resilient Seated Gate Valve, Cast Ductile Iron Rising Stem Resilient Seated Gate Valve and so on.