2011 Hot Sale Professional Topall Gear spin tillage 2011 Hot Sale Professional Topall Gear spin tillage1. 6+2 sliding gear type shifting, with reasonable matching of gear position and strong agricultural adaptability.2. Stepless wheel tread regulation in the range between 760mm-930mm.3. Capability of rotary tillage, ploughing, smoothening, harvesting, transport, sowing, pumping, threshing, ...