G.T. International Co., Ltd. China (Mainland)

G.T. International Co., Ltd., located in Guiyang, a major city in southwest China, professionally designs, manufactures and sells rock drilling tools and anchor bolts. Our main products include rock drill rods, rock drill bits, pneumatic breakers, hexagonal hollow steel, round hollow steel, oxygen hexagonal pipes, furnace tap-hole drill steel, self-drilling hollow grouting anchor bolts and high-strength light hollow grouting anchor bolts Our registered trade marks are SANDCO and ROK. SANDCO Brand drill rods are widely used in India, Turkey, Vietnam and the Middle East, and have a good reputation. ROK Brand drill rods, our best products, are manufactured with a new process which can prolong rod life to drill synthetic rock. We have been manufacturing anchor bolts for 10 years and have a complete set of process to meet customers' needs. Our main specifications are R25, R28, R32, R38, and R51. Moreover, we can manufacture products as client's requirements for thickness and technical data. our Oxygen hexagonal pipes, wall thickness and hole small, are able to endure the high temperature, deep into the furnace over 4 meters, heighten furnace temperature, save electric power consumption, save oxygen, improve efficiency, and increase production. Our products' specifications are Hex22 and Hex25.