Manufacturer & Supplier of Top hammer drilling tools, Down the hole DTH hammer and bits
2018年8月6日星期一
https://www.jinquandrill.com/T51-12ft-3660mm-extension-rod-with-coupling-pd6619434.html
https://www.jinquandrill.com/T51-12ft-3660mm-extension-rod-with-coupling-pd6619434.html
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