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  • astm wpb a234 ansi b16.9 steel elbows

    astm wpb a234 ansi b16.9 steel elbows,ALL WALL THICKNESS OF SEAMLESS ELBOW 1.Size:1/2"-48" 2.Acc.to GB/T12459/ASME 3.1.5D 90DEG ALL WKINDS OF SEAMLESS ELBOW...




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