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成品图纸>4层以上、双拼、200-300%252525252525252525252525252525252525252525252525252525252525252525E3%2525252525252525252525252525252525252525252525252525252525252525258E%252525252525252525252525252525252525252525252525252525252525252525A1、造价30-40%25E4%25B8%2587、进深18-20m