The Coast Guard choppers are coming in low over the water, the downdraft streaking a trough across the surface, the rescue guys swinging from cables like anyone could do what they do.
From road bed (way trough), storey of the cushion, basic unit, to the road surface, every storey hast regulate the roughness.
从路基(路槽)、垫层、基层、到路面面层，每一层都必须控制平整度。
3
Using Imported Prepreg as the Raw Material, the Second Overall Compression Molding for External Trough Line and the Tube, Excellent Surface Finishment and Mechanical Performance.