| 摘要 |
Insulation 2 comprising: an elongate tube of resiliently deformable insulative material, characterised in that insulative properties of the insulative material vary around the tube circumference. The variation may be by virtue of changing variable thickness, or alternatively by regions of high density 12 and low density 14 material. An outer layer 6 which may be reflective, may also be included. Sections of insulation may be joined using castellated or pinked ends (18, figure 5) and the insulation may be marked visually or by feel to indicate the highly-insulated side. |
