| 摘要 |
PURPOSE: A cover member having a high-weight and a single layer and a manufacturing method thereof are provided to reduce wave power by forming a water penetration hole in each support unit. CONSTITUTION: A cover member(10) having a high-weight and a single layer comprises a body, four supports(30), and a protrusion(40). The supports are formed along the edge surfaces of the body and are inclined downward. One or more water penetration holes(36) are formed in each support. The protrusion is integrally formed on the top of the body. An auxiliary inclined surface is formed on the end of the protrusion. |
