ear sir ,We, Guizhou Sinodrills Equipment Co.ltd, are one specialist drilling tools & equipment supplier and exporter. Our products mainly include:1, Top-hammer including thread button bits , taper drill rods bits, integral rods, extension shank adapter ...

Our company is a professional supplier of rock drilling tools. Especially DTH hammers, bits,drill tubes,coupling sleeves,button bits,cross bits,chisel bits and etc. The quality drill arrives the level foreign same kinds product quality, compared with ...