| 摘要 |
<p>An insulated panel for a rolling closure having a metallic outer wall and a thermoplastic inner wall. The outer and inner walls are connected together by side walls. One side wall has a male hinge member and the other side wall has a female hinge member. Both hinge members are composed of metallic and thermoplastic material. Insulation is provided in the panel extending between the side walls.</p> |
