Regular type of geological drill pipe of beneficial mine science and technology?

Release time:

2019-11-19

Author:

Source:

34（33.5）mm,42mm,50mm,63.5mm,73mm,89mm,108mm.

shandong yi mining drilling technology co., ltd. production of drilling engineering dedicated to all kinds of geological drill pipe, spiral drill pipe, triangular drill pipe, coal drill pipe, drill bit, drill pipe, complete specifications! Strength manufacturers, trustworthy! company set research and development-production-sales-sales as one, welcome customers to purchase, tel: 0635-2311078

Key words:

What is the implementation standard of geological drill pipe?

Pray for the dead-Shanxi Pingyao Coal Mine Gas Explosion Accident Killed 15 People Rescue End

What is the implementation standard of geological drill pipe?

Pray for the dead-Shanxi Pingyao Coal Mine Gas Explosion Accident Killed 15 People Rescue End

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