Guizhou Sinotech Equipment Co., Ltd. (hereinafter referred to as âSinotechdrillsâ), is a highly specialized mining and drilling consumables supplier, whose products include rock drilling tools (bench & production drilling tools, drifting & tunneling drilling tools, tapered and integral drilling tools), down-the-hole drilling tools, RC (reverse circulation) drilling tools, rotary drilling tools (tricone bits, raise bore roller cutters and drag bits), wire-line core exploration drilling tools, self-drilling anchor tools, and various kinds other drilling accessories.