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Specification for Drill String Non-return Valves
Translate name
STANDARD published on 1.7.2006
Designation standards: API SPEC 7NRV-ed.1-CHINESE
Publication date standards: 1.7.2006
SKU: NS-1140449
The number of pages: 40
Approximate weight : 120 g (0.26 lbs)
Country: American technical standard
Category: Technical standards API
API SPEC 7NRV CHINESE, 1st Edition, July 10, 2006 - Specification for Drill String Non-return Valves
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