ASTM A234 WP12 / WP22 / WP91 Butt Weld Fittings Deg LR 45 Deg Elbow ASME / ANSI B16.9 Standard Met︰ Specification ASME STANDARDS • ASME B 16.5: Steel Pipe Flanges and Flanged Fittings • ASME B 16.9: ...
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