A Contractor's Guide to Effective Firestopping: Why this task is so often overlooked by electrical professionals, even though if's required by code.
| Autor: | Pierce, Tim timothy.pierce@emerson.com |
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| Zdroj: | EC&M Electrical Construction & Maintenance. Oct2020, Vol. 119 Issue 10, p10-16. 4p. |
| Databáze: | Business Source Ultimate |
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