| 摘要 |
<p>This invention relates to a continuous method for making electrical heating mats suitable for installation on room floors, walls and ceilings, which method includes the steps of cutting transverse cuts in a longitudinal composite metal/plastic foil material and stretching the foil in a controlled way in order to provide a meander pattern of electrical resistance strip material, the method also including steps of making unit length mats with predetermined ohmic resistance and steps of providing terminations.</p> |
