Japanese standard flangeJIS B2220 (SOP) flat welded flangeJIIS B2220 (SW) socket welded steel pipe flangeJIS B2220 (SOH) with neck flangeJIS B2220 (WN) butt welded steel pipe flangeJIS B2220 (BL) flange cover steel pipe flangeJis B2220 (TR) rebar pipe flange
Japanese standard flangeJIS B2220 (SOP) flat welded flangeJIIS B2220 (SW) socket welded steel pipe flangeJIS B2220 (SOH) with neck flangeJIS B2220 (WN) butt welded steel pipe flangeJIS B2220 (BL) flange cover steel pipe flangeJis B2220 (TR) rebar pipe flange
