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成品图纸>4层以上、双拼、300%25252525252525252525252525E3%252525252525252525252525258E%25252525252525252525252525A1%25252525252525252525252525E4%25252525252525252525252525BB%25252525252525252525252525A5%25252525252525252525252525E4%25252525252525252525252525B8%252525252525252525252525258A、造价30-40%25E4%25B8%2587、开间16-18m、进深18-20m