The flat layout or blank length of a piece of metal from which a simple L-shaped bracket 3 inches by 1 inch is to be bent depends upon the radius of the desired bend.The bracket which will require the greatest amount of material is one which has a bend radius of
发布于 2021-02-18 18:20:18
【单选题】
A 1 /8 inch.
B 1/2 inch.
C 1/4 inch.
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