PIPE FOR SHEATHED PIPE CONSTRUCTION METHOD

PROBLEM TO BE SOLVED: To provide a pipe for a sheathed pipe construction method such as a lift-in construction method, wherein the outer diameter of the whole pipe is held down while securing sufficient strength and avoiding a collar from interrupting it. SOLUTION: The pipe 1 for the sheathed pipe c...

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Bibliographische Detailangaben
1. Verfasser: KAMAGOME KAZUNARI
Format: Patent
Sprache:eng
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