You're looking for a free download of the Chinese Pharmacopoeia 2020 in English PDF.
The Chinese Pharmacopoeia, also known as the Pharmacopoeia of the People's Republic of China, is an essential publication that sets standards for the quality of drugs, including their identification, purity, and dosage. It is published by the National Medical Products Administration (NMPA) of China. chinese pharmacopoeia 2020 english download pdf free