weld neck ff flanges dimensions

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neck butt welded steel pipe flanges

SO Flange RF,12",300#,ASTM A105/ANSI B16.5 1.Standard:ANSI, DIN,JIS, BS 2.carbon/stainless/alloy/Aluminum steel

neck butt welded steel pipe flange

(1) name: neck butt welded steel pipe flange (2) certification: ISO9001 (3) sea port: tianjin