Hualong company was founded in 1986, it is a professional manufacturer researching and producing all kinds of window and door hardware fittings, it is the first one authorized by ISO9001 in this field, and it is one of standard drafting units of China U-PVC window and door hardware. In the past twenty years, Hualong company had withessed the reform and development of China's window and door, deeply the importance of harmony hardware and window & *****, Hualong company developed and innovated as a carrier of window and door in the process of manufacturing and create hardware fittings, strictly according to ISO9001 quality service for the customers, determine to operate from a strategically advantageous position. After many years of market experiences, Hualong company has cultivated a expert team of technological design, and won the national patent more than 40 items, the company always adhere to the concept fo"learning then skilled, professional then experting", focused and dedicated to the development of window and door hardware, and strive to create harmony of the frame and sash. Hualong company will continue to expand cooperation with foreign friends and create social wealth together.