| 摘要 |
A method of making a seat shell having an inner and an outer wall with a cavity therebetween, said method including expanding a hollow softened element of thermoplastic synthetic resin material against the internal surfaces of a mould by injecting a gaseous fluid into said hollow softened element, the mould being so shaped that the seat shell produced therefrom has a seat portion and a back rest portion which are integral with each other. |
