| 摘要 |
<p>This semi-finished product consists of at least two layers:… - at least one layer S disposed on the surface of the said semi-finished product, intended for being exposed to a heat source, and… - at least another layer C not directly exposed to the said source, the said layer S having an overall level, by weight, of stabiliser 3 to 30 times greater than that of the said layer C and the layer S has a surface mass of between 50 and 600 g.m<-><2>.</p> |
