Shandong Weituo Group Co., Ltd. (SWT), the cradle of small-size four-wheel tractors, is a large-scale enterprise of producing tractors in China and one of the key corporation in Shandong province. Covering 4, 200, 00m² area, SWT has 2 assembly factories, 6 factories for spare parts, 2 holding companies, and more than 10 processing lines including more than 1000 sets of processing and measure equipments like producing center, tri-COMERO and so on. It also has the advanced CAD system and well-equiped products lab, which on top position among the same industry, and has strong ability on products produceing, research and development.