DHD, MISSION, SD, QL, NUMA
CE, ISO9001: 2000, API
Tungsten Carbide, High Manganese Steel
Well Drilling,Coal Mining,Quarry Drilling
Air/Sea/Express
High Performance
Down The Hole (DTH) Hole Opener
Flat;Convex;Concave
Spherical; Ballistic; Parabolic
Wooden Box or as Customers Inquire
165-1200mm