Semi Trailer Axle: 1)Semi-trailer, 2)Heavy/ light duty truck, 3)Including leaf spring, axle, etc. Semi Trailer Axle Wondee Autoparts supplies spare parts for: We can supply various ... vehicles, engineeringconstruction and semi-trailers, including steering axles, driving axlesand semi-trailer rear axles. The designated productive capacity of axle is 50,000 pieces ...