size 1/8" 1/4" 3/8" 1/2" 3/4" 1" 1-1/4" 1-1/2" 2" 2-1/2" 3" 4"
item(A) 17.7 18.6 20.5 22.5 25 28.2 32.2 36.4 42 47.8 52 63
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