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成品图纸>四层、300%25E3%258E%25A1%25E4%25BB%25A5%25E4%25B8%258A、造价20-30%2525252525252525252525252525252525E4%2525252525252525252525252525252525B8%252525252525252525252525252525252587、开间20m%25252525E4%25252525BB%25252525A5%25252525E4%25252525B8%252525258A、进深20m%E4%BB%A5%E4%B8%8A