فروش فوری Gate Valve - چهار عدد Body/Bonnet Material: ASTM A216-WCB Disc Material: A217-CA15 STEM Material: A479-410 Body Seat Ring Material: A576-1020+13%Cr Back Seat Ring Material: A479-410 Bolted Bonnet OutSide Screw Spindle And Yoke FLEX.WDG Disc Gear Operation STD: API600/ASME B16.10 Flanges As Per ASME B 16.5 و فروش Gate Valve - دو عدد Body/Bonnet Material: ASTM A216-WCB Disc Material: A217-CA15+STL.6 STEM Material: A479-410 Body Seat Ring Material: A576-1020+STL.6 Back Seat Ring Material: A479-410 Bolted Bonnet OutSide Screw Spindle And Yoke FLEX.WDG Disc Gear Operation STD: API600/ASME B16.10 Flanges As Per ASME B 16.5