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26
2018-02
What are the materials of R780-36Mn2v and R780-42MnMo7? What's the difference?
Answer: R780 is a brand, and R780-36Mn2v and R780-42MnMo7 are chemical components. They all belong to the same brand of alloy steel pipe for geological drilling. 42MnMo7 adopts normalizing and tempering treatment process, with higher mechanical properties.
2018-02-26
26
2018-02
What is the implementation standard of geological drill pipe?
A: the People's Republic of China Ministry of Coal Industry Standard MT/T521-2006
2018-02-26
26
2018-02
Another name for geological drill pipe?
Answer: Geological drill pipe is also called: imitation British drill pipe, round drill pipe, outer flat drill pipe, smooth drill pipe, geological alloy drill pipe, coal mine tunnel regular drill pipe, exploration drill pipe, down-the-hole drill pipe.
2018-02-26
26
2018-02
The application field of geological drill pipe?
A: Geological drill pipe is mainly used for drilling, mining and anchoring in coal mines, mines, construction and water conservancy projects, railways, highways, tunnels and bridges. In coal mines, it is mainly used for coal mine water exploration, gas exploration, coal exploration, coal thickness and coal seam water injection.
2018-02-26
