| 摘要 |
PROBLEM TO BE SOLVED: To obtain a molding excellent in drainage efficiency and durability by combining a water permeable molding and a reinforcing molding having a draining groove. SOLUTION: The molding having a sufficient draining effect for a heavy rain and retaining a strength and durability can be obtained by combining the molding A excellent in drainage efficiency with the reinforcing molding B having a draining groove 2. A lightweight, strong, and environment-friendly molding can be obtained, especially by using recycled waste chiefly formed of polypropylene. COPYRIGHT: (C)2004,JPO
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