Material Q345B carbon steel Tank thickness 5 mm body and 6 mm tank head Insulation layer 8mm thickness Rock wool layer with PPGI plate Heating system RIELLO burner with complete oil tank and control system Axle Fuwa 13T ,3pcs King Pin JOST brand 2" traction pin Tire&Rim Triangle brand 315/80R22.5,13 pieces, rim grey color Brake Dual line brake syst