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ASME B16.9 Weld Ends SCH40 SCH80 SCH120 Carbon Steel A234 WPB Black Pipe Fittings Tee Type Tee Size 1/2"-48" WT SCH10-SCH160 Standard ANSI B16.9, ASME, GB, DIN, JIS Material A234 WPB, A420 WPL6,MSS ...