FIREPROOF DOUBLE TUBE JOINT

PROBLEM TO BE SOLVED: To provide a fireproof double tube joint capable of preventing a tube diameter of a socket from being enlarged, and capable of exhibiting enhanced fireproofness, water-tightness and earthquake resistance. SOLUTION: This fireproof double tube joint 1 is constituted by an inner t...

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Bibliographische Detailangaben
1. Verfasser: HARIGAYA RYUICHI
Format: Patent
Sprache:eng
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