-
GB/T 20105-2026 in English
TO BE VALID
Issued on:2026-03-31 | Implemented on:2026-10-01
$375.00 $364.00 -
GB/T 21151-2025 in English
Main axial fan for coal mine—Technical specification
VALID
Issued on:2025-10-31 | Implemented on:2026-02-01
$315.00 $306.00 -
JB/T 15082-2025 in English
Energy Efficiency Limits and Energy Efficiency Grades for Mine Ventilation Fans
VALID
Issued on:2025-07-02 | Implemented on:2026-02-01
RFQ -
MT/T 421-2025 in English
On-site performance parameter measurement methods for main ventilators in coal mines
VALID
Issued on:2025-06-30 | Implemented on:2025-12-30
$300.00 $291.00 -
MT/T 1281-2025 in English
Mining Air Door Control Device
VALID
Issued on:2025-06-30 | Implemented on:2025-12-30
$195.00 $190.00 -
MT/T 1278-2025 in English
Technical Conditions for Silencers Used in Local Ventilators for Coal Mines
VALID
Issued on:2025-06-30 | Implemented on:2025-12-30
$165.00 $161.00 -
NB/T 11693-2024 in English
Technical Specifications for Sand Control and Completion of Sandstone Geothermal Wells
VALID
Issued on:2024-12-25 | Implemented on:2025-06-25
$285.00 $277.00 -
GB/T 28398-2023 in English
Norms of energy consumption statistics for coal enterprises
VALID
Issued on:2023-11-27 | Implemented on:2023-11-27
$220.00 $214.00 -
MT/T 1205-2023 in English
Safety inspection & testing specification for coal mining products in use Main fan system
VALID
Issued on:2023-04-10 | Implemented on:2023-07-01
$210.00 $204.00 -
NB/T 11168-2023 in English
Technical specification for hole and hole protection of gas drainage boreholes in coal mines
VALID
Issued on:2023-02-06 | Implemented on:2023-08-06
$150.00 $146.00
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