Cast Iron Valve, Cast Steel Valve, Ball Valve manufacturer / supplier in China, offering ASME B16.5 B16.47 DIN2576 En1092 Flange Stainless Steel or Carbon Steel Material, Stainless Steel/Carbon Steel Water Pipe Flange According to ASME ANSI B16.5 DIN En1092-2 GOST Standard Blind /Slip on/Weld Neck Flange Manufacturer 2025, Forged Stainless Steel 300#/600#/900# Bsp Thread Slip-on Flange and so on.