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7月22日获悉:3M公司自即日起至9月30日展开投影消耗品促销活动,主要促销产品为SMPP2910复印胶片,所有在上述时间购买3MPP2910复印用胶片的用户,只要将产品包装上的标签寄回3M
On July 22, it was learnt that 3M Company launched projection consumables promotion from now until September 30. The main promotional product was SMPP2910 copy film. All users who purchased 3MPP2910 copying film at the above time, only need to label the product packaging. Send back 3M