Hunan Tianying Drilling Rig Manufacturing Co., Ltd. was formerly known as Zhuzhou Dongfang Tool Factory "The company is located in Liyu Industrial Park of Zhuzhou National High tech Development Zone. It is a professional manufacturer of tricone bits. Its products include mining tricone bits and oil tricone bits. Among them, the mining tricone bits produce more than 30 varieties of two series, namely, air-cooled bearing compressed air slag removal series and sealed bearing compressed air slag removal series. The annual production capacity of mining tricone bits is more than 8000, with complete varieties and specifications The product quality has reached the advanced level in the industry. The product meets the requirements of the national GB/T13343-2008 Mining Tricone Bit product quality standard. The product model is in line with the internationally accepted IADC (International Association of Drilling Contractors) bit code. It is an ideal tool for drilling holes in iron ore, copper mine, coal mine, molybdenum mine and other open-pit mines, and can adapt to the drilling operation of various ores and rocks, In addition to our products used by some large mines in China, they are also exported to Brazil, the Philippines, Vietnam, Singapore, Chile and other countries.