![Architecture / Metalworking / Construction / Floors / Abrasive blasting / Masonry / Abrasive / Pressure washer / Tile / Cleaning / Visual arts / Building materials Architecture / Metalworking / Construction / Floors / Abrasive blasting / Masonry / Abrasive / Pressure washer / Tile / Cleaning / Visual arts / Building materials](https://www.pdfsearch.io/img/588cc2190130c0a12556884c366c0b87.jpg) Date: 2013-10-10 14:01:02Architecture Metalworking Construction Floors Abrasive blasting Masonry Abrasive Pressure washer Tile Cleaning Visual arts Building materials | | Cleaning Historic Masonry Rehabilitation Standard No. 7 - Part 1 Rehabilitation Standard No. 7: Chemical or physical treatments (such as sandblasting) that cause damage to historic materials shall not be used. The surfacAdd to Reading ListSource URL: www.iowahistory.orgDownload Document from Source Website File Size: 196,30 KBShare Document on Facebook
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