| 摘要 |
<p>The protective-and covering foil has multiple application especially in building and agricultural as well as horticulture. The foil contains cut-outs or protuberances on one or both sides in the form of a cone and/or a pyramid. These have a hole or one or more cut aways. The holes are circular or angular while the cut-aways are cross-shaped, Y-shaped or X-shaped. The shape at the holes and cut-aways is not tied to the shape of the protuberances.</p> |
