COMPOSITE MATERIAL |
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| 申请号 | PCT/GB2011051732 | 申请日 | 2011-09-14 | 公开(公告)号 | WO2012035348A2 | 公开(公告)日 | 2012-03-22 |
| 申请人 | G LTD AB; HERBERT JIM; SLATER PAUL; | 发明人 | HERBERT JIM; SLATER PAUL; | ||||
| 摘要 | A composite material made up of fluid permeable layer and a core having drainage voids between projections thereon. The core has a number of relatively large openings defined therein so that in use the fluid permeable layer may extend through the openings in response to a working load applied thereto. | ||||||
| 权利要求 | |||||||
| 说明书全文 | |||||||
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