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MT/T 984-2025Polycrystalline diamond compact roof bit for coal mine (English PDF)

煤矿用金刚石复合片锚杆钻头

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Issued by

National Energy Administration

Level / Type

National · Recommended

Issue date

December 18, 2025

Implementation date

June 18, 2026

Scope

MT/T 984-2025 is the English-translated version of 煤矿用金刚石复合片锚杆钻头.

MT/T 984-2025 — Polycrystalline diamond compact roof bit for coal mine

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Document preview — MT/T 984-2025

National Standard of the People's Republic of China

Classification: D 81
Replacing: MT/T 984-2006

Issued by: National Energy Administration

Document data1

Document data

Chinese classification (CCS): D81.

Estimated length of the Chinese original: 13,168 words.

Supersedes the earlier edition MT/T 984-2006.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 9 pages — is available in the English PDF.

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