what is the cutting length of 90 degree bend in four corner
ring in column of 8mm dia size of column 450mmx250mm of
clear cover 20mm?
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Answer Posted / sandeep kumar
820+220+(2*80)(i:e we take 2 hook 10d each )-5*16(i:e deduction at five corners of the ring , we take 2d each )=1320
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