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round shape extension rod
Selling leads
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...designed to transfer power from the rock drill piston to the extension drill rod and eventually to the drill bit. In rock drilling, top hammer ...
2025-07-24 00:21:30
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... from the rock drill to the drill stems. In order to transmit power from the rock drill piston to the extension drill rod and eventually to the ...
2025-07-24 00:21:30
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