Zhejiang Dadi Steel Structure Co., Ltd. upholds the philosophy of technological innovation and the core value of safety and efficiency, striving to enhance the company's core competitiveness. The company is dedicated to innovating steel structure installation technology. Currently, it leads in independently developed new technologies and processes such as hanging structure construction technology, new short steel beam-column construction technology, large-span steel truss structure hydraulic integrated lifting technology, and large-span steel pipe truss track sliding support frame hoisting.

Hanging structure is a novel form of building structure. For the construction technology of core cylinder hanging structures, it researches the construction difficulties and methods of "top-down method" and "bottom-up method" in the field of hanging structures. Through the successful case study of using the "bottom-up method" for the Shanghai Jingqiao National Training Center project, it has accumulated rich construction experience and verified theoretical methods.