Changsha Tianhe Drilling Tools And Machinery Co., Ltd.., - Changshou, China


Our down-the-hole (DTH) hammer is a new type of valveless hammer driven by compressed air. It is the ideal rock drilling tool with advantages of large ...
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Changsha Tianhe Drilling Tools and Machinery Co.,Ltd. is a manufactory and exporter company of rock drilling tools, DTH hammer and bits in China.We ...
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