There are plenty of sources that have been selling legitimate anabolic androgen steroids for a long time. They are obtained from legitimate manufacturers in the same way that I obtain benzyl alcohol, benzyl benzoate and mct or grapeseed oil from legitimate manufacturers here in the United States.
The labs in China that are currently producing anabolic androgenic steroids will continue to do so because they are legitimate labs with legitimate customers the same way chem suppliers here in the US have legitimate customers that BA, BB, MCT, GSO, ETC. and those labs will continue to supply me because they have no reason to believe that I'm not a legitimate customer nor do they have an obligation to vet me.
If a law is passed in China that requires manufacturers to vet all their customers, then we have an issue here. If not, it's more likely that this is a gesture to the international community to keep things kosher for the winter Olympics. At least that's my .02.