| 摘要 |
A blank for use with an apparatus for continuously and sequentially forming cylindrical bodies with the blanks which are each made from a fiber board material which is rectangular in shape and has a leading and trailing edge, both of which are coated with a heat activatable adhesive so that when the blank is heated and immediately passed to a formal mandrel to be formed into a cylindrical body, the heat activated adhesive will secure the blank in a cylindrical form as well as seal the leading and trailing edges.
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