shingle burning brand.pdf · the opposite side kerf. the dry weight ofthe finished brands the test...

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Page 1: shingle burning brand.pdf · the opposite side kerf. The dry weight ofthe finished brands The test brands were exposed to a bumer flame for 2 minutes, duringwhich time they were rotated
Page 2: shingle burning brand.pdf · the opposite side kerf. The dry weight ofthe finished brands The test brands were exposed to a bumer flame for 2 minutes, duringwhich time they were rotated