潍柴重机：公司全资子公司主要研发及生产30米以下复合材料、钢质、铝质等各类船艇

Core Viewpoint - Weichai Heavy Machinery's subsidiary, Changzhou FRP Shipyard Co., Ltd., focuses on the research and production of various types of vessels under 30 meters, including composite, steel, and aluminum boats [1] Group 1: Company Developments - In 2022, Changzhou FRP Shipyard established a wholly-owned subsidiary, Bohai Star Ship Technology (Qingdao) Co., Ltd., to invest in the Weichai (Qingdao) Marine Equipment Manufacturing Center project [1] - The new project aims to expand the business into vessels ranging from 30 meters to 80 meters in length [1]