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Internal-external upset drill pipes with couplings. Specifications
STANDARD published on 1.1.1977
Designation standards: GOST 631-75
Publication date standards: 1.1.1977
SKU: NS-395124
The number of pages: 19
Approximate weight : 57 g (0.13 lbs)
Country: Russian technical standard
Category: Technical standards GOST
Iron and steel pipesEquipment for petroleum and natural gas industriesSteel pipes and tubes for specific use
Implemented changes and corrections:
Amd. 4.86
1.1.1975
1.1.1987
1.1.1978
WITHDRAWN
1.1.1978
1.1.1979
1.7.1981
Latest update: 2026-06-20 (Number of items: 2 283 412)
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