由国家机械委天津工程机械研究所与天津市庆华机械厂联合研制的ZL7型铰接轮式装载机(图1),经整机性能测试和行驶、作业试验,证明各项指标均已达到设计要求。样机已于 The ZL7 hinged wheel loader (Figure 1) was jointly developed by Tianjin Machinery Engineering Institute of Tianjin Municipality and Qinghua Machinery Plant of Tianjin Municipality. After the whole machine performance test, driving test and operation test, it proved that all the indexes have reached the design Claim. Prototype has been