Beijing Guofeng Jianye Co., Ltd., with its subsidiaries (Beijing Northern Guojian Plastics Industry Co., Ltd., Beijing Guofeng Jianye Doors and Windows Manufacturing Co., Ltd., Anhui Haowei Construction Group Beijing Branch), was established in 1999. The company currently has more than 400 employees and a registered capital of 8 million yuan. It is located at No. 8, Hulufa Village Industrial Zone, Changyang Town, Fangshan District, Beijing. Additionally, it has branches in Hefei and Xuzhou. The company boasts 8 top-notch PVC windows and doors production lines, 5 aluminum alloy processing lines, 5 insulating glass processing lines, and 2 steel-plastic co-extrusion lines. Covering an area of over 80 mu (about 53,333 square meters), the company's production facilities, including warehouses, span 28,000 square meters. Its annual production capacity for windows and curtain walls exceeds 500,000 square meters. In 2005, the company obtained ISO9001-2000 quality management system certification. It is one of the major enterprises in the production of windows and curtain walls in Beijing and North China. Furthermore, the company focuses on the design, production, and sales of PVC plastic window profiles and plastic windows. Among its staff are over 50 senior and mid-level managers and technicians, making it a leading enterprise in the PVC profile industry in Beijing in terms of output and scale.