Located at Qinghua Lake, Toutai Town, Zhaoyuan County, Daqing City, Heilongjiang Province, this project adopts a “fishery-solar integrated” model, combining PV power generation with aquaculture. PV panels are installed above the water surface while fish farming continues below, achieving dual-purpose land use and comprehensive efficiency. Guozhi Technology supplied complete fastener products for the PV bracket system, including hot dip galvanized bolts, braces, connectors, and clamps, with excellent corrosion resistance adapted to the severe winter cold and humid lake environment of Northeast China, ensuring long-term stable operation of the PV power station.