Shipping and Marine
| Sun 31 May 2026
Beijing, June 1 -- Dalian Shipbuilding Industry has sought patent for Energy-saving Guide Wheel Top End Supporting Device with Prewhirl Flow Guide Function. This invention was developed by Wang Jingyang, Hao Jiashu, Lin Lin, Shi Zhenqiang, Zhang Keqiang, Li Wei, Jiao Zhendong, Liu Shixing, Zhao Dan, Ding Chuanlong, Hou Yupin, Li..