| 摘要 |
A moulded article (10) and method of producing same, comprising a first relatively high density outer layer (12) and a second relatively low density inner layer (14). A method comprises charging a mould with first and second moulding materials, heating the material to a first temperature at which the first material can be moulded, moulding said first material in the mould, further heating the material to a second temperature at which the second material can be moulded and moulding said second material in the mould.
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