HEAT EXPANSION MATERIAL FIXTURE, COMPARTMENT PENETRATION TOOL, AND FIREPROOF COMPARTMENT PENETRATION TOOL
To provide a heat expansion material fixture capable of securely preventing spread of fire, a compartment penetration tool provided with the heat expansion material fixture, and a fireproof compartment penetration tool provided with the heat expansion material fixture or the compartment penetration...
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Format: | Patent |
Sprache: | eng ; jpn |
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