| 摘要 |
<p>The process for making laminated sheet or plates in various thicknesses consists of (a) preparing a first metal sheet from various alloys e.g. aluminium, brass, bronze, copper, steel or similar with various surface finishes e.g. brilliant, matt, satin, gilt, chrome or nickel plate, galvanised or similar; (b) making a plastics sheet or supporting body from a methacrylate or polystyrene of various thicknesses, which may be rigid or flexible.</p> |
