Special Material Valve:Titanium,Nickel Alloy,Zirconium,Nickel-Al Bronze,Super(Dulex), Nickel- ... , 310, etc. Design and Manufacturing special material valves:- Special material valve (w/strainer, w/glass) on the basis of bar material ... /705)(Super) Duplex347, 321, 310, etc.Nickel-Al Bronze Check Valve Specification:Swing/piston/ checkSize: ½”-10”Pressure rate:4500 lbsEnd connection: RF, BW ...