Patents Assigned to Ningbo Yinzhou Zhongtian Hydraulic Co., Ltd.
  • Lifting cylinder with balanced valve
    Patent number: D789015
    Type: Grant
    Filed: July 15, 2016
    Date of Patent: June 6, 2017
    Assignee: Ningbo Yinzhou Zhongtian Hydraulic Co., Ltd.
    Inventors: Pingguo Shu, Chengshu Jiang, Yihai Zhong