Purchase Qty. Reference FOB Price
1 Piece US$1,300.00
2+ Pieces US$1,200.00
Product Description
Detailed Photos In the drilling process, the drill bit is the main tool for breaking the rock, and the wellbore is formed by the drill bit breaking the rock. The formation of a wellbore is good or bad, and the length of time it takes is not only related to the characteristics of the formation ...