The vehicle of Shanghai Rail Transit Line 8 is a type C urban rail transit bus, which is developed for the first time in China and fills the gap in China. The vehicle is in a leading position in the field of domestic urban rail vehicles in terms of body structure, external modeling of the head, integrated design of the cab interior, functions and modeling of passenger compartment interior decoration and equipment, double-layer sliding door structure of manual interior door in the cab and electric interior door in the passenger compartment, integration ability of traction and braking system, all-round dead angle free 3 million pixel HD video monitoring technology, etc. Our company is mainly responsible for providing aluminum alloy profiles for car body in the project of Shanghai Metro Line 8.