| 摘要 |
PURPOSE: A wedge-shaped insulation sheet can prevent uneven planes when applied to repair of the existing insulation sheet because the thickness is gradually reduced to an end. CONSTITUTION: A wedge-shaped insulation sheet comprises an insulation sheet(1) and an incombustible sheet(2) laminated on a side. The insulation sheet is formed by compressing Styrofoam, polyethylene foam, or urethane foam. The incombustible sheet is made from vermiculite, glasswool, or pearlite with high incombustibility. The thickness of the insulation sheet is gradually reduced to an end.
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