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成品图纸>四层、双拼、100%25E3%258E%25A1%25E4%25BB%25A5%25E4%25B8%258B、造价30-40%25252525252525252525252525252525252525252525252525252525252525E4%25252525252525252525252525252525252525252525252525252525252525B8%2525252525252525252525252525252525252525252525252525252525252587