DARWELL INDUSTRIES LTD.
DARWELL INDUSTRIES LTD. Patent applications | ||
Patent application number | Title | Published |
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20090056132 | METHOD OF FORMING A BLOWOUT PREVENTER BODY - A method of manufacturing a blowout preventer body includes the steps of: providing more than one billet; forming a first billet to form a first portion of the blowout preventer body; forming a second billet to form a second portion of the blowout preventer body; and welding the billets to form the blowout preventer body. | 03-05-2009 |