In 1989, the factory preparatory group was established and rented an old building of NanMenQiao Haiyan Garment Factory for office. In March, 1990, the joint venture "Guiyang Tools Factory-Haiyan Branch Factory " was officially established in that old factory building. Three years later, the house number was changed to No. 239, Xinqiao North Rd. The main products are roughing end milling cutters and rectangular spline ring/plug gauges.