1. Material: Color Steel Sheet 2. ISO9001:2000, TS/ISO16949:2002, 3C 3. Germany Technology Refrigerated semi trailer: heavy truck for transporting goods that must be kept cold.Refrigeration unit: cooling apparatus.Vent door: movable panels used to regulate air intake.Clearance light: lights that indicate the form and dimensions of a vehicle.Upper side-rail: beam that runs the length of the upper ...