Single-sided thickening 90*40*165 Five-layer main frame CM single-sided thickening 90*40*195 Five-layer main frame CM single-sided thickening 90*40*225 Five-layer main frame CM single-sided thickening 90 * 40 * 225 Five-layer main frame CM single-sided thickening 90 * 40 * 225 Five-layer main frame CM single-sided thickening 90 * 40 * 225