G.T. International Co., Ltd, located in Guiyang, a major city in southwest China, professionally designs, manufactures and sells rock drilling tools. The main products include rock drill rods, rock drill bits, pneumatic breakers, hexagonal hollow steel, round hollow steel, blast furnace oxygen pipe and furnace tap-hole drill steel. We regard quality as paramount and have a research & development department managed by a nationally famous expert in the field of rock drilling tools.