MAKE A MEME View Large Image Sleeve in concrete.jpg Steel Sleeve in concrete floor to create an opening for a pipe penetration Uneven Packing incomplete firestop Own 2007-06-16 Achim Hering Pipes Firestops Rockwool Firestops being installed
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Keywords: Sleeve in concrete.jpg Steel Sleeve in concrete floor to create an opening for a pipe penetration Uneven Packing incomplete firestop Own 2007-06-16 Achim Hering Pipes Firestops Rockwool Firestops being installed
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