SGS is an inspection, appraisal, testing, and certification organization that serves as the benchmark for quality and integrity. SGSTongbiao Standard Technical Service Co., Ltdis SwitzerlandSGSGroup and affiliated with the originalNational Bureau of Quality and Technical SupervisionThe Chinese Standard Technology Development Company was jointly established in 1991joint ventureWith the initials' General Notary Office 'and' Bureau of Standards and Metrology ', we have established over 50 branches and dozens of laboratories in China, employing more than 12000 well-trained professionals