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成品图纸>三层、300%25252525252525E3%252525252525258E%25252525252525A1%25252525252525E4%25252525252525BB%25252525252525A5%25252525252525E4%25252525252525B8%252525252525258A、造价20-30%2525252525252525252525252525E4%2525252525252525252525252525B8%252525252525252525252525252587