Izitifiketi

Amazwe azojoyina inhlangano yemboni kawoyela yaseChina, futhi awine izitifiketi zenhlangano yemboni kawoyela yaseChina "umkhiqizo othembekile wekhwalithi"

I-United States brand iwine isitifiketi se-American petroleum Institute API

Inkampani iphumelele uhlelo lokuphathwa kwekhwalithi ye-ISO 9001 kanye nezitifiketi ezimbili ze-ISO 14001 zokulawulwa kwemvelo; Isitifiketi se-ACEA ngenhlangano yaseYurophu yabakhiqizi bezimoto; Imikhiqizo ye-Benz, BMW, porsche, Volvo, Germany Volkswagen, jaguar land rover izinto eziyisithupha ezinkulu ezingaphezu kweshumi zesitifiketi, kanye nesitifiketi sokupakishwa kabusha sase-United States i-DEXRON VI; Le nkampani iyilungu lenhlangano yemboni kawoyela yokugcoba yaseShayina, yawina isitifikedi sokuhlonipha sebhizinisi lezikweletu laseShandong esikhishwe, kanye neminye imiklomelo eminingi.