| 摘要 |
PURPOSE:To enable the sure joining of metallic pipes even if the gap between the pipes is large or the widths, depths, etc., of the groove of labyrinth are different, by applying a labyrinth at the joining part of the metallic pipes, and inserting an elastomer resin or adhesive between the pipes. CONSTITUTION:The joining part of a pipe for the water supply installation such as stainless steel pipe, etc., is expanded in the form of trumpet or bag, and a labyrinth is formed at the expanded part. An elastomer resin or adhesive is applied to the labyrinth to complete the joining of the pipes.
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