1.半挂牵引车和总质量大于12000千克的货车的所有车轮均应装备盘式制动器,且应装备符合规定的防抱制动装置、限速装置(或具有限速功能)和汽车行驶记录仪等安全装置,总质量大于12000千克的货车主要在山区道路行驶的,还应装备缓速器或其他辅助制动装置。赵亮:不应该强制使用盘式制动器,盘式制动是一种制动形式,在国外也没有 1. All wheels of semi-trailer tractors and freight wagons with a total mass of more than 12,000 kg shall be equipped with disc brakes and shall be fitted with anti-lock brakes, speed limiting devices (or speed limit functions) and vehicle travel records Instruments and other safety devices, the total mass of more than 12,000 kg truck driving mainly in mountainous areas, but also should be equipped with retarder or other auxiliary brake. Zhao Liang: disc brake should not be forced to use, disc brake is a form of brake, nor in foreign countries