... use the WD615.62,WD615.87 engine of China National Heavy Duty Truck Group Co., Ltd.Technical Specifications of Refrigerated TruckEngine ModelWD615.67 ... Power Co.,Ltd. China National Heavy Duty Truck Group Co., Ltd. Weichai Power Co.,Ltd. China National Heavy Duty Truck Group Co., Ltd. Weichai Power Co.,Ltd. China National Heavy Duty Truck Group Co., Ltd ...