| 摘要 |
<p>The moulding composition comprises a curable synthetic resin, reinforcing fibres and fillers, the resin being applied to the reinforcing fibres in two layers:… in an inner layer, the reinforcing fibres are impregnated with a synthetic resin component A which contains up to 10% by weight of fillers, and, in an outer layer, the impregnated reinforcing fibres are coated or sheathed with a further synthetic resin component B, which contains at least 20% by weight of fillers; components A and B may contain identical or different resins.</p> |
