| 摘要 |
<p>A method of making a composite laminated structure of foam and fibre matting consists of laying a bed of foam flakes or lumps between layers of fibre matting and joining all the layers together by stitching. Specif., waste polyurethane foam particles of size 20 (10) mm, pref. 3-8 mm, are used, opt. together with other waste foam prods.</p> |
