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修理車間在进行修配工作的时候,常常需要用各种尺寸的六角形棒料來制造螺栓和螺帽。有时缺少某种需要尺寸的六角形棒料,只能利用圓形軋料在銑床上銑成六角形。这样很麻煩,也很浪費。
Repair shop In the repair work, often need to use a variety of hexagonal bar to make bolts and nuts. Sometimes missing some kind of hexagonal bars of the required size, can only be milled into hexagons on a milling machine using round rolled stock. This is very troublesome and very wasteful.