| 摘要 |
PROBLEM TO BE SOLVED: To easily and accurately check an applying state of an adhesive on a lower face of a saddle and a connecting state with a main pipe, when a branch pipe joint is connected to a main pipe. SOLUTION: A saddle of the branch pipe joint is formed in a transparent or semi-transparent state. Thus, the applying state of the adhesive and the connecting state with the main pipe are visualized, and an adhesion degree with the adhesive is also improved by applying a fine irregularities surface processed with embossing onto the lower face of the saddle. COPYRIGHT: (C)2004,JPO
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