China 3.5 inch drill pipe

2750 series radius over-bit reamer+rock bit bundle. p/n: spl-0020 includes 954-0496 and 950-2750

Ways to improve the service life of dth hammer:for the problem that affects the service life of the drill bit, the following solutions can be adopted: a. because the titanium alloy has large elastic deformation and the hole is easy to shrink, the drill tip is slightly sharpened to appropriately...

Rc hammers the missile reverse circulation line of hammers are used in a wide range of drilling rigs in various geological formations. they are preferred by on-site geologists for their high percentage of uncontaminated sampling; their fast penetration rates; and their trouble-free, low-cost, and long life performance.

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