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  1. General Roofing Discussion
    so ive had my C-42 license for 25 years now, no complaints. been thinking about commercial but will need a L-42, but a K-42 covers both. az.govsays it would be better to get the L-42 and keep my C-42 because of the years ive had it. guess its a good reference when people check it out online to...
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