Founded in 1995, it integrates the research and development, design, production, and construction of heat-insulated aluminum alloy fire-resistant windows/fire-resistant windows and has a large enterprise with design/construction qualifications.

Qingdao Wanhe Architectural Decoration Group consists of four wholly-owned subsidiaries: Qingdao Wanhe Decoration Doors and Window Engineering Co., Ltd., Shandong Wanhe Zhongsheng Curtain Wall Co., Ltd., Qingdao Wanhe Runjia Decoration Engineering Co., Ltd., and Qingdao Wanhe Haoyuan Metal Materials Co., Ltd. composition. Wanhe Doors, Windows and Curtain Wall Enterprises were established in 1995 with a registered capital of 170 million yuan.

The production base of "Wanhe Doors and Windows Curtain Walls" is located in Jimo City, Qingdao, covering an area of ​​300 acres. It is a large-scale production base in the same industry in Shandong. It is closely connected to the city center and radiates to the Jiaodong Peninsula, with convenient sea, land and air transportation. The group has a total investment of RMB 500 million and is equipped with a production workshop of 160,000 square meters; more than 50 production lines such as aluminum alloy doors and windows, plastic steel doors and windows, and refractory doors and windows, and has introduced high-tech CNC equipment, testing equipment and German production processes. The company is equipped with more than 20 sets of professional door and window curtain wall design optimization software and engineering management software, with an investment of about 120,000 yuan.

The group company currently has Class A special design for building doors and window curtain wall engineering, Class A qualification for building curtain wall engineering, Class A qualification for building curtain wall engineering, Class A qualification for metal doors and window engineering, Class II contract for decoration and decoration engineering, and Class Third-level contract for steel structure engineering. The company has passed the ISO9001 quality management system certification, ISO14001 environmental management system certification and occupational health and safety management system certification.

The company has developed new products: heat-insulated aluminum alloy fire-resistant windows and fire-resistant windows. Refractory integrity reaches 30min, 60min, 90min, and is a fire-resistant fire-resistant door and window for energy conservation and fire protection in China. At present, the company independently developed 21 utility model and invention patents, which are approved and issued by the State Patent Office, and are effective in leaking doors and windows and energy saving. Solve and improve, independently developed and created in the field of fire protection of aluminum alloy windows. Wanhe is a large enterprise integrating R&D design, production and construction, and has design and construction qualifications.