Identification of aluminum quality methods are there? Identification of the surface coating film is good or bad way to compare aluminum front cover is to look at the edge of the aluminum buckle, see if I can expose them to film. Qualified Lvkou composite film at high temperatures up, exposing not down, can certainly be peeled off adhesive aluminum orange peel, can not buy. Also a lot of the sales will be known as their imports of aluminum is coated aluminum film Supply Orange manufacturers, in fact, once the difference between the so-called imported aluminum film and installation of domestic films rarely move simply peel aluminum manufacturer, and hanging on the roof, simply is to look less out. So absolutely no need to care about is not imported aluminum film cellulite supply manufacturers, just to get a few sample compare to light, choose a good gloss on it. Generally, cold-rolled aluminum sheet suitable for punching blanking, hot rolling aluminum sheet suitable for stretching. According to different aluminum content of alloying elements can be divided into six series were 1000,2000,3000,4000.5000.6000.7000.8000 process can be divided according to different cold-rolled and hot-rolled. Depending on the thickness of the sheet and plate can be divided. GB / T3880-2006 standards set forth in what is known as the thickness of 0.2 mm aluminum foil. More common Grade: aluminum orange peel, orange peel aluminum manufacturer Alcoa rolls (Certified Merchant) Ltd provided by Jinan Aluminum rolls. Jinan Heshun Aluminum Co. (www.jnhsly.com) in the field of aluminum products devoted boundless enthusiasm and passion, rolls Alcoa has been customer-centric, for customers to create the concept of value, quality and service to win market share sincerely hope to cooperate with the community to create success, create brilliant. Welcome to the relevant business information, Contact: Zhang.