... log,steel,machines and ect Type NX70 universal car is mainly used to deliver log,machines,vehicle,steel,bridges, structural, components,goods ... ,brake device and coupler & draft gear.The braking device adopts type 120 control valve,spinning sealed brake cylinder of 305X254,ST2 ... class steel)and MT-2 draft gear.The car adopts Type K6 bogie. Type NX70 and X6k trailer