download pattern layouts here

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<!-- End BidVertiser code --> in this link you can download layouts for metal http://www.thesheetmetalshop.com/library/Triangulation_F_S_Kidder.php
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Link for 90's

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<!-- End BidVertiser code --> click on this link for some lay outs for 90s     http://www.thesheetmetalshop.com/pdf_manual/ElbowPatterns_Kidder.pdf
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NOMINAL INSULATION THIKNESS

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LONG RADIOUS 90 MITER CHART

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SQUERE TO ROUND

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UNEQUAL TEE

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TEE PATTERN

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