The company founded in 1928. The main products for the tap, die, thread rolling plate, milling cutter, reamer. Use of the whole grinding, vacuum heat treatment and surface coating of new technology, leading product technology close to the international contemporary standards. Annual production capacity of 15 million pieces, is the largest manufacturer of thread cutting tool. Products for machinery, automobiles, aviation, electronics, communications, construction and other industries. The company registered trademark "three times" brand has been seventy years of history, in the tool industry and users in China has wider implications and good reputation. In 1995, the review by the State Bureau of Technical Supervision, the appointment of Standardization Technical Committee for the national .. (more>>)