Architect - 1/32, 1/16, 3/32, 1/8, 3/16, 1/4, 3/8, 1/2, 3/4, 1, 1 1/2, 3 Engineer - 10, 20, 30, 40, 50, 60 Metric - 1:20, 1:25, 1:50, 1:75, 1:100, 1:125
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