Petroleum and natural gas industries — Steel drill pipe — Amendment 1
Industries du pétrole et du gaz naturel — Tiges de forage en acier — Amendement 1
75.180.10 - Exploratory, drilling and extraction equipment. Including offshore structures
77.140.75 - Steel pipes and tubes for specific use. Including hollow steel bars and sections for construction
Modifica a: ISO 11961:2018
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