| 摘要 |
A method of construction of an article wherein an inflatable envelope (3) of gas-permeable material has an outer layer (2) of expandable reinforcement and is then inflated to attain a desired shape, whereafter a crating of settable material (9) is applied to at least part of said reinforcement and allowed to harden about said reinforcement to produce a rigid skin over at least said part of the article. |
