With adamant pursuit of the art of doors and windows, Comfortone employees make every piece of their products with great care which can only found in making handicrafts. They perfectly combine the aesthetic perception of oriental with highly useful function through excellent making and flexible and professional design. All the 100 odd top-grade products of them such as Germany-style solid wood and wood-aluminum doors and windows, VEKA top-grade plasticsteel doors and windows and insulated glass etc. have obtained the recognition of ISO9000 Quality System.