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Fire-protected wall bushing`s housing for use in partition wall, has rectangular external cross section, which is surrounded at three sides by connection collar that is designed with specific thickness
Fire-protected wall bushing`s housing for use in partition wall, has rectangular external cross section, which is surrounded at three sides by connection collar that is designed with specific thickness
The housing (10) has a rectangular external cross section, which is surrounded at three sides by a connection collar (26). The collar is designed with a specific thickness. The housing receives a fire protection flap.
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