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Forged Steel Flange ASTM B564 UNS N06059 Welding neck flange B16.5,B16.47A,B16.47B Specifications Alloy Steel & Carbon Steel Fittings 1. SCH10~SCH160/STD/SGP/XS/XXS 2. ASTM/JIS/DIN/BS/GB 3. size:1/2"...