Introduction: The industrial plant renovation and expansion project of Hangzhou Weilijie Travel Supplies Co., Ltd. is a new construction project located at No. 995, 16th Avenue, Qiantang District, Hangzhou City, Zhejiang Province. The total land area of this project is 4,500 square meters, with a total floor area of 30,896.00 square meters. The building comprises one basement level and 12 above-ground floors. Building No. 1 (the new factory building) has 26,297 square meters above ground and 4,480 square meters underground; the waste disposal room covers 43 square meters, and the guardhouse spans 76 square meters. The structural safety grade is Level 2, the design service life is 50 years, the seismic fortification intensity is Grade 6, and both the foundation design grade and the pile foundation design grade are Class A. Quality Objective: Ensure “Qiantang Cup” award. Features and Highlights: 1. This project makes extensive use of new materials and technologies, including reinforced concrete technology, formwork and scaffolding technology, MEP installation engineering technology, green construction techniques, waterproofing and energy-saving envelope systems, information technology, as well as multiple specialized contractors, all under tight construction schedules and stringent quality requirements. 2. For challenging sections, pre-layout is performed on computers using CAD to calculate detailed dimensions for each component, ensuring strict adherence to these calculations during construction. 3. All sub-projects, such as the foundation and main structure, have passed inspection on the first attempt; the concrete structures exhibit excellent internal strength and aesthetic appearance, with fully filled mortar joints in the masonry; and the building settlement is uniform and stable.