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成品图纸>一层、300%252525252525252525252525E3%2525252525252525252525258E%252525252525252525252525A1%252525252525252525252525E4%252525252525252525252525BB%252525252525252525252525A5%252525252525252525252525E4%252525252525252525252525B8%2525252525252525252525258A、造价20-30%25252525E4%25252525B8%2525252587、开间18-20m