| 摘要 |
<p>Plastics laminated material consists of a core onto opposite faces of which is applied a liq. layer of synthetic resin which subsequently sodlifies. Pref. th core, which may take the form of panels or spaced strips, is made of a foamed plastics material and its surface is provided with open pores or surface openings for ingress of the synthetic resin to provide a dimensionally finished prod. Used as thermally insulating panels for construction of containers underground tanks, boots and silos.</p> |
