Curved aluminum profiles are mainly double speed chain aluminum profiles and flexible chain aluminum profiles, which are used for industrial assembly line guides and are all equipment for manufacturing conveyor lines. The aluminum profile is light in weight, easy to bend, and easy to make the conveying line path required by customers. The use of double speed chain aluminum profile or flexible chain aluminum profile production line can withstand the transmission of large loads, stable operation, beautiful structure, low noise, with computers and other tools, can achieve automated operation, greatly reducing costs.