This is Reaching build in China. We are the manufacturer specializing in UPVC & Aluminum window and door over ten years. We work for wholesalers, distributors, architects, builders, contractors, developers and individual customers all over the world.To maintain the high quality product, we have strict quality control: 1) complete raw material management; 2) Separated storage; 3)engineering support:2D design workshop drawing to client to double check and to guide the production ; 4) skilled workers yo make sure the production quality in details; 5) pre-assemble and testing to further assure the quality and finishing appearance. Besides, we have excellent after-sale service, like offering technical drawing to support client with installation.Beside,we have a complete database to help us provide a window solution for customers. Our custom solution not only concerns those basic factors such as window size, opening sizes, window style, glazing and hardware, but also concerns the practicability and durability of windows based on client's special requirements, like the BAL rate, the insulation, shading coefficient, U factor and anti-corrosion property.