Auto interior parts mould generally refers to parts and materials such as partitions, door trim panels, instrument panel assemblies, armrests, carpets, etc. Although the interior is only some auxiliary parts, they must undertake the functions of vibration reduction and heat insulation, sound absorption and noise masking play a very important role in the comfort of the car. Installing a suitable steering wheel cover on the steering wheel can not only increase the comfort of the hand, but also bring a comfortable and pleasant feeling to the driver, and also prevent the wear and tear of the steering wheel. There are many types of steering wheel covers. According to different materials, it can be divided into plush, velvet, thick cloth, imitation leather, leather, diving cloth, rubber particles, leather, and high-density cashmere thickened leather lining, etc. On this basis, some improved materials have been made. , such as luminous leather, non-slip particles, short velvet embroidery, and plush steering wheel cover doll. The purpose of installing the sunroof is to facilitate the ventilation in the cabin, and the air conditioner in the cabin directly affects the comfort of the passengers. The sunroof also provides convenience for driving photography and videography. According to the different opening power, the car sunroof can be divided into the manual type and the electric type. According to the different opening directions, it can be divided into inner hidden type, outer sliding type, camber type, open type, etc. Manual sunroofs mainly include camber type and open type.