90, 114, 140, 146, 168, 219, 323, 254,
Water Well Drilling
CE, ISO9001: 2000, API
Tungsten Carbide, High Manganese Steel
Well Drilling,Coal Mining,Quarry Drilling
Air/Sea/Express
High Performance
Casing System
Flat;Convex;Concave
Spherical; Ballistic; Parabolic
Wooden Box or as Customers Inquire
PA90, PA115, PA140, PA165PA190