Hengfeng", the trade mark of our products, covers all specifications and varieties of aluminium profiles including 90, 73, 70A, 70B, 70C, &65 sliding windows; doors; ceilings; industrial and general profiles such as square tubes, flat pipes, round tubes, angle materials, and other decorative profiles. We have many kinds of colours and surface treatment for your choice: silver, dark, bronze, stainless steel, champagne, gold, etc,plus anodizing, electrophoresis, coating, etc. We use excellent raw materials: aluminium ingots, silicon ingots, magnesium ingots, etc. Therefore, our aluminium profiles have a bright and smooth surface, good shape and cutting quality, equal wall thickness, suitable hardness and standard film thickness. The quality of our products conforms to the GB/T-5237-2000 standard, so our products are selling well and are well received by customers all around the world.