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Nguồn GĐ&XH: http://giadinh.net.vn/xa-hoi/3-cong-ty-o-bac-giang-bi-so-tnmt-de-nghi-lam-ro-so-lieu-ve-hoat-dong-tiep-nhan-va-chuyen-giao-chat-thai-20170920231621595.htm