Design and manufacture conform to BS5352 , MSS SP - 118; Connection ends conform to Socket welded ends conform to ANSI B16.11 , JB/T1751 Screw ends conform to ANSI B1.20.1 , JB/T7306 Butt-welded conform to ANSI B 16.25 , JB/T12224 Flanged ends conform to...
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