| 摘要 |
<p>Either the central outer sheet (1) of one of the door faces, both sheets of both faces or one or all of the sheets of the panels of the door are made of cardboard and a paper of the suitable thickness and properties and are printed with solvent inks based on a resin or the like which, after installation, are pressed and varnished (3) as the rest of the door, being integrated in the structure of the door with the traditional feel of normal wood.</p> |
