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Hard metal (carbide) inserts for mining and oil—field rock bits
Translate name
STANDARD published on 22.3.1989
Designation standards: GB/T 2527-1989
Note: WITHDRAWN
Publication date standards: 22.3.1989
SKU: NS-880322
Country: Chinese technical standard
Category: Technical standards GB
Latest update: 2026-04-01 (Number of items: 2 270 267)
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