Heat Treatment Services—Continuous Line for Equipment Used in the Petroleum and Natural Gas Industry
STANDARD published on 1.8.2019
Designation standards: API STD 20N-ed.1-CHINESE
Publication date standards: 1.8.2019
The number of pages: 31
Approximate weight : 93 g (0.21 lbs)
Country: American technical standard
Category: Technical standards API
API STD 20N CHINESE, 1st Edition, August 2019 - ?????——????????????????? ??
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