WDi is an API-6A, API 16A, and 16C Wellhead, Valve, BOP and Drilling Spool manufacturing and distribution company. The compan ... y has 8 stocking locations in the US and Canada. We provide "JIT" inventory solutions to OEM's, service companies, oil & gas supply and rental businesses. The company is an API-6A & API 16A manufacturing company. Our Tomball, Texas facility is dedicated to the production of high pressure, large bore FRAC Valves and FRAC Components as well as Engineered Wellhead Systems, BOP and Drilling Spools, Made in the USA ! We are the leader in the distribution of "commodity" API 6A Wellheads and Production Valves in the US and Canada. We carry the a largest inventory of wellheads and valves (as well as studs & nuts, ring gaskets, flanges) in the industry! We have the largest regional footprint in the industry to provide the best service (24/7) to our customers. We have it where you need it! Call us at 281.448.1000 Email: info@wdius.com read more