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116-120mm 4 Inch High Air Pressure DTH Hammer Drilling Bit for Drilling
2025-04-13
introduction 3070
HDB-SP4806
Customized
Jobber-length
High Carbon Steel
Well Drilling, Metal Drilling
φ116-120
165
10
2
8*14
Hyra
Wooden Case
7.7Kg
China
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