Atlas Copco DTH Hammer (Cop34, Cop44, Cop54, Cop64,
8 10 12 Inch Dth Rock Big Size Water Well Drilling Hammer And Bits. Quality: 95% similarity to COP/SD/DHD/IR/CIR/QL ect. Advantages: high quality and factory prices. Bit face: Center drop/Flat/convex/concave/double gauge face bits. Button shape:
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