DIN GOST GB Wcb/GS-C25/Gp240gh Rising Stem Industrial Gate Valve Specification: Size: DN15-DN1200 Model:Z40H Pressure: PN16-PN250 Material: 1.0619/GP240GH/GS-C25(WCB), 1.7357 (WC6) ,1.7379/1.7382(WC9),1.7363 (C5), 1.7389 (C12), 1.4308(CF8), 1.4408(CF...