| 摘要 |
<p>1497943 Laminates T H GOLDSCHMIDT AG 30 July 1975 [7 Dec 1974] 31938/75 Heading B5N A continuous strip material suitable for use in covering insulated pipes comprises a layer of Kraft or like paper bonded on one surface to an aluminium strip which is 200 to 800 microns thick and on the other surface to an aluminium foil which is 8 to 20 microns thick by means of films of moisture-resistant synthetic plastics material, e.g. polyethylene. The paper may be 100-250 microns thick. Polyethylene films of thickness 10 to 30 microns may be used.</p> |
