湖北省机械研究所和沙市力车药械厂共同设计制造的东方红-20悬挂式喷雾机,经过500小时的田间考核和模拟试验,于一九七八年十一月十九日通过省级签定。该机与东方红-20高地隙拖拉机配套。输液泵采用了新型的隔膜泵,压力高,雾化质量好,能防止锈蚀,使用可靠。输液管 Hubei Province Machinery Research Institute and Shashi Liyuan Yijia Chang jointly designed and manufactured Dongfanghong-20 suspended sprayer, after 500 hours of field assessment and simulation tests, passed the provincial level on November 19, 1978 set. The aircraft and the East Red-20 high clearance tractor supporting. Infusion pump uses a new type of diaphragm pump, high pressure, atomization of good quality, to prevent corrosion, the use of reliable. Infusion tube