Please give me some advice: Who has excellent technical quality, Chengdu denture or Chongqing Meiyu oxidized all-ceramic teeth?

I don't know. I have represented porcelain teeth and all-ceramic teeth for many years. I have worked in many manufacturers, mainly focusing on equipment and technician skills. Not necessarily which factory is good. Some new factories, new equipment, and a group of skilled technicians have been hired, and the products made are just as good. There are also companies that choose after-sales warranty.