SGS yog dab tsi? SGS (yav tas los Société Générale de Surveillance (Fabkis rau General Society of Surveillance)) yog ib lub tuam txhab Swiss multinational lub hauv paus chaw haujlwm hauv Geneva, uas muab kev kuaj xyuas, kuaj xyuas, kuaj thiab ntawv pov thawj. Nws muaj ntau dua 96,000 em ...
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