carbon steel butterfly valve flange
Butterfly Valve Flange are mainly used in industrial production pipelines. Flanged butterfly valves are widely used in water conservancy projects, water treatment, petroleum, chemical industry, urban heating and other production pipelines in general industries, and can also be used in steel bars and cooling water systems in thermal power stations. Material Carbon steel ASTM A105, A350 LF1, LF2, LF3, LF6, CL1/CL2,; A694 F52, F60, F65, F70; A516 Gr. 60, 70; BS-EN 10222-2 P245GH, P280GH; EN10222-4 P355NH, P355QH; EN10273 P250GH, P265GH; DIN 17243 C22.8; VD-TUEV350/3 C21; GB/T 1591 Q345B, Q420B; NB/T 47008 16Mn,20#; BS 10250-2 S235JRG2; Stainless steel…
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