BHD110P, BHD130P
Nitriding Treatment
Forging
High-Quality Hard Alloy, Best Quality Steel
Soft-Hard Formation
Ore Mining, Coal Mining, Well Drilling
Rock Drilling, Core Mining, Well Drilling
Small Hole Drilling, Gas Deep Hole Drilling, Boreh
Blue, Golden, Black, Red, Customize
1 Inch to 24 Inch
DTH Hammer Export to Russia Drill Bit
Standard Export Packing.
BHD110P, BHD130P