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成品图纸>三层、双拼、120-140%2525252525252525252525252525252525252525252525252525252525252525252525E3%25252525252525252525252525252525252525252525252525252525252525252525258E%2525252525252525252525252525252525252525252525252525252525252525252525A1、造价20-30%25E4%25B8%2587、开间16-18m