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标题: UL153 TABLE 10.1 的一句话解释 [打印本页]

作者: Samjxh 时间: 2013-12-18 14:24
标题: UL153 TABLE 10.1 的一句话解释
A Surface is determined to be flanged when the two opposite longer sides are bent at right angles to the surface to form 1/2 inch or wider flanges.

求大侠解释.

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