近日由黄河工程机械集团有限责任公司自行研制的TY220推士机组合式铲刀通过了由中国人民解放军总装备部组织进行的技术鉴定，并即将投人批量生产，装备部队。这种新型铲刀主要是为适应军队特殊工程需要而开发设计的。它有三个活动面，由弧形面板、活动铲刀、推杆、带活节连杆和 Recently, the TY220 push-type modular blade developed by the Yellow River Construction Machinery Group Co., Ltd. has passed the technical appraisal organized by the General Armament Department of the Chinese People’s Liberation Army. It is about to invest in mass production and equipping troops. This new type of blade is mainly developed and designed to meet the needs of special military projects. It has three active surfaces, which are curved panels, movable blades, putters, links with articulation and