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Founded in 1995, Qingdao Wanhe architectural decoration group, a large-scale enterprise with design / construction qualification, integrates the R & D, design, production and construction of thermal insulation aluminum alloy fire-resistant windows / fire-resistant windows. It is composed of Qingdao Wanhe decoration doors and windows Engineering Co., Ltd., Shandong Wanhe Zhongsheng curtain wall Co., Ltd., Qingdao Wanhe Runjia Decoration Engineering Co., Ltd., Qingdao Wanhe Haoyuan metal materials Co., Ltd The company is composed of four wholly-owned subsidiaries. Wanhe door and window and curtain wall enterprises were established in 1995 with a registered capital of 170 million yuan. The production base of "Wanhe door, window and curtain wall" is located in Jimo City, Qingdao, covering an area of 300 mu. It is a large-scale production base in the same industry in Shandong Province. It is close to the city center, radiating Jiaodong Peninsula, with convenient land, sea and air transportation. With a total investment of 500 million yuan, the group is equipped with 160000 square meters of production workshops, more than 50 production lines for aluminum alloy doors and windows curtain walls, plastic steel doors and windows, fire-resistant doors and windows, etc., and has introduced domestic and foreign high-tech numerical control equipment, testing equipment and German production technology. The company is equipped with more than 20 sets of professional window and curtain wall design optimization software and engineering management software, with an investment of about 120000 yuan. At present, the group company has grade a qualification for special design of building doors and windows curtain wall engineering, grade a qualification for professional contracting of building curtain wall engineering, grade I qualification for professional contracting of metal doors and windows engineering, grade II qualification for professional contracting of decoration engineering and grade III qualification for professional contracting of steel structure engineering. The company has passed ISO9001 quality management system certification, ISO14001 environmental management system certification and occupational health and safety management system certification. Company R & D new products: thermal insulation aluminum alloy fire-resistant windows, fire windows. The fire resistance integrity reaches 30min, 60min and 90min. It is a fire-resistant and fireproof door and window for building energy conservation and fire prevention in China. At present, the company has independently developed 21 utility models and invention patents, which are approved and issued with certificates by the national patent office. It has effectively solved and improved the leakage and energy conservation of doors and windows, and independently developed and created the aluminum alloy window fire protection field. Wanhe is a large-scale enterprise with design and construction qualification, integrating R & D, design, production and construction.

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