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成品图纸>四层、双拼、100-120%E3%8E%A1、造价20-30%25252525252525252525252525252525252525252525252525252525252525252525252525E4%25252525252525252525252525252525252525252525252525252525252525252525252525B8%2525252525252525252525252525252525252525252525252525252525252525252525252587、开间16-18m