Pipie Joint flange 1,Material: Stainless Steel, Carbon Steel, Alloy Steel 2,Size: From1/8" to 64" 3,Standard: ANSI,DIN,BS ... e Pipie Joint/ Ring joint face flange Production standard: GB/T9112 ... Flanges, Socket Welding Flanges, Blind Flanges, Orifice Flanges, Lap Joint Flanges, Ring Joint Flanges, Long Welding Neck Flanges, Figure 8 Blanks Stainless ...