
8 1/2 Inches PDC Drill Bit M137 for Very Hard Rocks Drilling
- Manufacturer: Hebei Solidkey petroleum machinery co;ltd
Medium-hard to hard formations with lowcompressive strength , such as hard shale, limestone, sandstone, dolomite, hard gypsum,marble, etc.
Cangzhou, China
KM311 rock support bolter / bolting rig
- Manufacturer: ROCA
KM311 rock bolter, a fully mechanized bolting rig optimized for 5m x 5m size headings Roof support bolting and meshing. Engineered to install the most common fastening rock bolt types in roof profiles stabilizin...
Shanghai, China
KM211 rock support bolter
- Manufacturer: ROCA
KM211 rock bolter,is a compact and highly versatile electro-hydraulic rock support drill rig,diesel tramming and electric drilling,compact carrier,efficient and durable rock bolt integrity making it the versatile...
Shanghai, China

