This Catalog Supplement lists all API Flanges with the
required Bolts, Tap End Studs, Ring Gaskets and Wrenches
with all dimensional information and weights for all these
flange accessory items offered by WOODCO USA.
As a manufacturer of hammer union by API flange and/or hub adapters, WOODCO
USA strongly supports the creation of an API Standard Specification for
Figure Number designated hammer unions.
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