Chillers are devices that eliminate heat from a fluid through a vapor-compression or absorption refrigerant cycle, and discard that heat elsewhere. Cool fluid generated by the chiller is dispersed within a heat exchanger to cool and dehumidify fluid in various commercial, industrial, and medical facilities. In addition, ice cold water is utilized for different industrial applications, which include food processing, patient cooling, equipment cooling, and others.

Transmission is a component inside the vehicle, which is installed to transfer mechanical power from the engine for spinning the wheels. Electric vehicles are generally installed with single-speed transmission. However, leading players in the electric vehicle (EV) transmission market are launching new multi speed transmission with added features for high performance and efficient energy conversion. Electric vehicles with multi-speed transmission offer better performance than single-speed transmission systems in terms of faster acceleration, top speed, gradeability with driving range, and others.

2021 年机械设备板块实现营业收入18341.3 亿元，同比+18.0%，归母净利润1157.9 亿元，同比+8.4%。2021Q4 板块实现营收5215.9 亿元，同比+6.3%，归母净利润109.9 亿元，同比-55.1%，下滑较大主要原因是受年末计提资产减值影响。2022Q1 板块实现营收3867.8 亿元，同比小幅下滑0.6%，归母净利润241.4 亿元，在2021 年高基数下同比下滑22.3%。

PMI（国家统计局4 月30 日数据）：4 月制造业PMI 指数为47.40%，环比下降2.10 个pct，低于荣枯线，制造业总体景气水平继续回落。高技术制造业PMI 为50.10%，环比下降0.30 个pct，高于制造业总体2.70 个pct，具有较强发展韧性。装备制造业PMI 为45.80%，环比下降3.70 个pct;

军工“内生”需求将中期高增长。世界进入新一轮装备扩张期；为“备战”打战、实现百年强军目标，建立与经济相称的国防，军工装备进入5-8年高增长期。行业“外延”增长锦上添花。2022年是国企“三年行动计划”最后一年，国资委再提“加大优质资产注入及股权激励力度“，军工集团不断推出重组案例。