| 摘要 |
<p>The target disc is designed to receive the impact of arrows or bolts etc. fired from a gun. It is made from fibrous bound such as rubberised hair or coconut fibres material with an organic binder. The whole can be made up of layers, and can be used both sides. The final layer can be of a material designed to prevent the member from passing through. Between the layers can be intermediate tough plastics material which close the holes in a self-sealing manner. A granular material can be used to close the holes. The final layer may be transparent.</p> |
