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Carbon Steel ASME B16.9 Pipe Fitting Seamless Sch40 DN50 ASTM A234 Wpb Butt Weld Tee Material: carbon steel (ASTM A234WPS, A234WPC, A420 WPL6), (ST45.8 A105 A106 STG42) Alloy steel(ASTM A234 WP12/WP11...