89mm, 114mm, 127mm, 102mm, 76mm
Well Drilling,Coal Mining,Quarry Drilling
CE, ISO9001: 2000, API
1m,1.5m,2m,2.5m,3m,6m
High Manganese Steel,Tungsten Carbide
Air/Sea/Express
High Performance
Down The Hole (DTH) Pipe
2 3/8" API Reg Thread, 3 1/2" API Reg
Wooden Box or as Customers Inquire