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Carbon steel: ASTM A234 WPB, A420 WPL3/L6 Alloy steel: ASTM A234 WP1/P5/P9/P11/P12/P22/P91 Standard: ASME B16.9, JIS, DIN, GB/T12459 Types: L/R and S/R 45, 90 and 180° elbow, straight and reducing tee...