... in R & D, marketing and production of various aluminum extrusion , doors and windows, curtain wall and stainless steel products. Established in 1988 ... 35000 tons.What kind of products and service we can provide · Aluminum profile for doors, windows, fence, screen, curtain wall ... line, auto parts, etc;· Doors and Windows System, include sliding door, side hung window, tilt and turn window, etc· Deep ...