... ., Ltd. Make full ranges of spare parts for semi-trailers: A. Mechanical suspension: Casting or ... steel tube without welding E. Air suspension system, most parts imported from Germany. F. Landing gear: Single side ... operation or twin side operation landing gears for semi-trailers. Can be same design as JOST, ... 22.5, 8.25-22.5 N. Brake Chamber for semi-trailer, full series. T20, T24, T30 ...