First of all, let's talk about the difference between CCC and CQC. CCC is a compulsory product certification in China. All products in the compulsory catalogue shall not be imported or sold in China market without CCC certification. CQC, the abbreviation of China Quality Certification Center, is the largest certification body in China. The mark certification (or voluntary certification) of the certification center is called CQC mark certification, and CQC mark certification is a voluntary act. In addition, the certification scope does not overlap with CCC certification scope and CQC certification scope. As long as it is CCC, it cannot be CQC, and as long as it is CQC mark certification, it cannot be CCC certification.