Patents Assigned to Ningbo Zhongtian Union Mechanical & Electrical Manufacturing Co., Ltd.
  • Lifting cylinder
    Patent number: D793648
    Type: Grant
    Filed: June 23, 2016
    Date of Patent: August 1, 2017
    Assignee: Ningbo Zhongtian Union Mechanical & Electrical Manufacturing Co., Ltd.
    Inventors: Chengshu Jiang, Honghui Dai, Zhankun Lv