MAKE A MEME View Large Image Unsealed1.jpg Unsealed Pipe Penetration firestop is missing in 2 Hour Fire-Resistance Rated Concrete Block Wall in Ontario Pulp And Paper Mill Own 2007-06-17 Achim Hering Fire Paper Plumbing Pulp and paper mills in Canada Firestops Concrete ...
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Keywords: Unsealed1.jpg Unsealed Pipe Penetration firestop is missing in 2 Hour Fire-Resistance Rated Concrete Block Wall in Ontario Pulp And Paper Mill Own 2007-06-17 Achim Hering Fire Paper Plumbing Pulp and paper mills in Canada Firestops Concrete blocks No firestop at all - empty hole Building code violations
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