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. Our registered trade marks are SANDCO and ROK. After many improvements, our SANDCO Brand drill rods are widely used in India, Turkey, Vietnam and the Middle East, and have a good reputation. Our ROK Brand drill rods, our best products, are manufactured with a new process which can prolong rod life to drill synthetic rock.
