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National Standards of the People's Republic of China , coded as GB, are the national standards issued by the Standardization Administration of China.
Mandatory national standards are prefixed "GB". Recommended national standards are prefixed "GB/T". A series number follows the prefix "GB" or "GB/T".
GB standards are the basis for the product testing which products must undergo during the China Compulsory Certificate certification. If there is no corresponding GB Standard, CCC is not required.
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