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  2. 9,9-diphenyl-2-(9,9-diphenyl-9h-fluoren-2-yl)-7-(9,9-diphenyl-9h-fluoren-7-yl)-9h-fluorene
9,9-diphenyl-2-(9,9-diphenyl-9h-fluoren-2-yl)-7-(9,9-diphenyl-9h-fluoren-7-yl)-9h-fluorene

9,9-diphenyl-2-(9,9-diphenyl-9h-fluoren-2-yl)-7-(9,9-diphenyl-9h-fluoren-7-yl)-9h-fluorene

¥ 1.00 ¥ 1.00 1.0 CNY

¥ 1.00

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