Shaanxi Hanjiang machine Tool Co., Ltd. (HJMT for short) was set up by state investment in 1969. As a productive base of the thread grinders, and one of the large key enterprises in machinery industry in China, HJMT at present has 2300 employees, of whom more than 300 are the senior and middle-level technical people. There are a national thread grinding machine research center and a Shaanxi rolling functional device research center in HJMT. Up to now HJMT has obtained more than 70 research achievements, the research levels of which at least are provincial ones. In these research achievements,...