56" ASME B16.47 WNRF Weldneck Flanges Series B Class 400#, Carbon Steel A694 F60 Welding Flange, ASTM A694, ASME SA694

Manufacturers & Suppliers of ASTM A694 F60 Carbon Steel WNRF Weldneck Flange Series B, 56\" ASME B16.47 Class 400# Weldneck Flanges Series B, ASME SA694 F60 CS WNRF Welding Neck Flanges Series B, ANSI B16.5 WNRF, High Quality Yield F60 Welding Flange.

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