उत्पत्ति के प्लेस
Hebei, China
ब्रांड नाम
Deris and Kingdream
मॉडल संख्या
buyer's requirement
Color
golden,red,bule and so on
Teeth
button tooth or steel tooth
Market
USA,Middle East,South Africa
Applicaton
oil/water well drilling
bearing type
metal or rubber seal bearing
additional materials
gauge protection
Model Number
TCI(tungsten carbide insert) bits