How do you know whether an enterprise has really passed the ISO900 1 international quality system certification?

Green O900 1 International Quality System Certification A phone call came one day, saying that 40,000 will help you certify, 30,000 will help you certify, 20,000 will help you certify, 1 10,000 will help you certify. Don't take it seriously, just pay some money to buy a certification! ! ! ! Just like Alibaba, give Alibaba's boss Ma Yun 2300 yuan, and he will say that you are an honest man and give you an honest account! ! ! ! ! ! ! ! ! !