Documents tc1201

C A M E R O N A P I G A T E V A LV E S During the past 60 years, numerous gate valve designs have been used in the oilfield. Slab gates, parallel gates, and expanding gates…

Documents Dual Sealing Valves

www.womusa.com Worldwide Oilfield Machine General Catalog Invention Innovation & Engineering Creativity Worldwide Oilfield Machine Houston, Texas February 11, 2009 3WORLDWIDE…