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Position: Chinese Standard in English/NB/T 11470-2023
NB/T 11470-2023   Technical specification for high level directional long drilling in roof for gas extraction in coal mining face (English Version)
Standard No.: NB/T 11470-2023 Status:valid remind me the status change
Language:English File Format:PDF
Word Count: 6000 words Price(USD):180.00 remind me the price change
Implemented on:2024-6-28 Delivery: via email in 1~3 business day
Standard No.: NB/T 11470-2023
English Name: Technical specification for high level directional long drilling in roof for gas extraction in coal mining face
Chinese Name: 采煤工作面瓦斯抽采顶板高位定向长钻孔技术规范
Chinese Classification: D09    Hygiene, safety and labor protection
Professional Classification: NB    Professional Standard - Energy
Issued by: Nation Energy Administration
Issued on: 2023-12-28
Implemented on: 2024-6-28
Status: valid
Language: English
File Format: PDF
Word Count: 6000 words
Price(USD): 180.00
Delivery: via email in 1~3 business day
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Keywords:
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