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Do wiercenia studni
Thread:API Reg 3 1/2 "
Bit type:TCI
Tricone diameter (mm):149
Bearing type:Air bearing
IADC:4-3-2
Do wiercenia studni
Thread:API Reg 3 1/2 "
Bit type:TCI
Tricone diameter (mm):187
Bearing type:Fluid bearing
IADC:4-3-1
118-3251-41-FB-CA-02
Thread:API Reg 6 5/8"
Bit type:TCI
Tricone diameter (mm):251
Bearing type:Fluid bearing
IADC:4-2-1