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成品图纸>4层以上、双拼、造价30-40%2525E4%2525B8%252587、开间20m%25252525252525252525252525252525252525252525252525252525E4%25252525252525252525252525252525252525252525252525252525BB%25252525252525252525252525252525252525252525252525252525A5%25252525252525252525252525252525252525252525252525252525E4%25252525252525252525252525252525252525252525252525252525B8%252525252525252525252525252525252525252525252525252525258A、进深0-10m