SWT is the creator of small-size 4-wheel tractor. Through more than forty years development its scale has been getting larger and larger and its has been well equipped continuously. Its main products are Weituo brand products including model TS12-24, TS180D-240D, TY180-TY300, Alland360-464, SWT850-854 series tractor and matched farm implements. Its annual output reaches two hundred thousand sets. Weituo brand tractor earned the only top state silver medal among Chinese same products as the first brand among the industry in China, gained the title of "the famous brand of Chinese Technical Products", and also he title "Chinese International Agricultural Industry Exhibition Famous Products".