These are seamless welded carbon steel fittings designed to serve at moderate and high temperature services. Metafit Piping Industries is a reputed ASTM A234 WPB Buttweld Fittings Stockists and as such, its fittings are available in ASTM A234 specifications, WPB grade (Wrought Carbon Steel, Grade B) and dimensional standards including ANSI B16.9. They are made to join pipes with varyi... https://www.mfpind.com/astm-a234-wpb-buttweld-fittings-manufacturers-exporters-suppliers-stockists.html