Anonymous 发表于 2014-4-14 14:54:15

有钢管1.3米12支,1.8米8支,2.0米3支,2.3米18支,2.4米28支,3.6米20支,4米39支,4.3

有钢管1.3米12支,1.8米8支,2.0米3支,2.3米18支,2.4米28支,3.6米20支,4米39支,4.3米27支,求用几米长的钢管下料最省材料.
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查看完整版本: 有钢管1.3米12支,1.8米8支,2.0米3支,2.3米18支,2.4米28支,3.6米20支,4米39支,4.3