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Middle-Low Air Pressure DTH Button Bits CIR90 Rock Drill Bits
2025-04-13
introduction 3870
CIR90
Customized
API
Jobber-length
Twist Drill Bit
Carbon Steel
Metal Drilling
174mm
Flat Face
2
6
3.2kg
DHD DRILL
Wooden Case
76mm-90mm
China
8207199000
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