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成品图纸>双拼、300%E3%8E%A1%E4%BB%A5%E4%B8%8A、造价20-30%25252525252525252525252525E4%25252525252525252525252525B8%2525252525252525252525252587、开间20m%252525E4%252525BB%252525A5%252525E4%252525B8%2525258A、进深20m%25252525252525252525E4%25252525252525252525BB%25252525252525252525A5%25252525252525252525E4%25252525252525252525B8%252525252525252525258A