Youlian Green Building Engineering Construction Co., Ltd. and Guangdong Youlian Steel Structure Materials Co., Ltd. are construction enterprises that integrate steel structure design, processing, and installation. They have qualifications such as first level professional contracting for steel structure engineering, first level steel structure processing and production, second level general contracting for construction engineering, and second level professional qualification for curtain wall environmental protection decoration; National high-tech enterprise, certified by ISO9001:2008 international quality management, ISO14001:2004 environmental management, OHSAS18001 occupational health and safety management system, and a member unit of China Steel Structure Association; The company has its own steel structure component processing base covering an area of 100000 square meters, and has more than 30 national inventions and utility models.