C&N HONGCHENG are well known Manufacturer Aluminum material pipe,Aluminum flange and Aluminum pipe fitting.we provide each clients order with detail inspection pictures,videos and professional documents. our Aluminum material supplied in material 1060,1100,3003,5083,6060,6061 and so on. these products can be with varities of heat treatment include temper,Mill Finish, Anodized, Powder Coated, Wooden Finish, Polish.