STONG has many years of professional experience in product testing and certification of the third party inspection certification bodies, in strict accordance with the ISO/IEC Guide 65 and ISO/IEC 17025 requirements of the establishment, and achieved China National Accreditation (CNAS) accreditation, the International Laboratory Accreditation Cooperation (ILAC) recognition. At the same time, the company also received the Hongkong mechanical and Electrical Engineering Department of EMSD, UL, Intertek (ETL-SEMKO), CSA, MET, T, Rheinland, T V V S, SGS, NEMKO, D FCC, IC, CPSC, TMICO, California Energy Commission (California CEC Energy Authority) etc.. Since its inception, the company sincerely helps customers' products meet the requirements of continuously updated international standards. The international market has been recognized by the majority of customers, and has certain popularity and reputation in the same industry.

The company has many laboratories equipped with internationally advanced equipment and testing functions, which can provide test and certification services