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Carbon Steel Bend Butt Welding Fittings Carbon Steel Elbow A234 Wpb Asme B 16.9 Sch 40 3D 4D 5D Type BUTT WELDING FITTINGS Size Seamless :1/2"~24" DN15~DN600 Welded : 1/2"~100" DN15~DN2500 Wall ...