The total vehicle mass (kg) shall be the sum of the rated load quality, the curb weight, and the number of quasi-passengers in the cab (according to the 65kg/person account); the total mass of the semitrailer tractor shall be the maximum allowable load of the saddle seat and the number of quasi-passengers in the cab ( According to 65kg/person account), the sum of curb weights; the total mass of dedicated work vehicles with no-load quality is the number of passengers on the cab (according to 65kg/person), the sum of curb weight; the total mass of passenger cars and passenger cars should not be less than The sum of curb quality and crew quality. Single Screw Barrel,Single Screw And Barrel,Screw And Barrel,Single Screw ZHOUSHAN HUARUI MACHINERY MANUFACTURING CO., LTD. , https://www.huaruiscrew.com (kg)