50型的鋼承板最長跨距是多少啊! - 土木
By Annie
at 2016-05-23T13:15
at 2016-05-23T13:15
Table of Contents
各位好。
請問常見的鋼承板有50,75型的。
那50的最長跨距是多少?
若2米中間還要支撐嗎?
--
請問常見的鋼承板有50,75型的。
那50的最長跨距是多少?
若2米中間還要支撐嗎?
--
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