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成品图纸>四层、双拼、200-300%252525E3%2525258E%252525A1、造价30-40%252525252525252525252525252525252525252525252525252525252525252525E4%252525252525252525252525252525252525252525252525252525252525252525B8%25252525252525252525252525252525252525252525252525252525252525252587、开间20m%25E4%25BB%25A5%25E4%25B8%258A、进深10-12m