发明授权
US5034080A Method of making a laminated tubular body 失效
制造层压管状体的方法

Method of making a laminated tubular body
摘要:
A laminated tubular body comprising; an outer layer and an inner layer which contacts the inner surface of the outer layer; wherein the outer layer is penetrated by at least one aperture and the inner layer extends into said at least one aperture.
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