The invention patent for counter - circulating evaporator of Chengda Chemical Engineering Corporation is already authorized and commercialized.

中国成达化学工程公司 反 循环蒸发器发明专利已授权,并已工业化.

互联网

Beijing Dandi Automatic System and Engineering Corporation belongs to the Institute of Mechanics, Academia Sinica .

北京丹迪自动化系统工程公司是 中国科学院 力学研究所所办公司.

互联网