Maybe for something as non-critical as knife steel the Chinese stuff is acceptable to you. But I've had some serious (including an injured employee) problems with Chinese steels in general and stainless in particular.
Just because it has an ISO number and the type of steel on it, it means nothing. And, if you use Chinese metals and they fail all you can do is go to you supplier. They in turn send you to the importer who directs you to the manufacturer. And there any hope of redress will end.
When I specify stainless piping for a project, I now require it be US made. Oh, and you still have to check because there are a couple three US outlets that will tell you their material is US made when it is in fact of Chinese origin.
I require that the people installing and supplying the material provide the appropriate documentation. It still won't stop the complete idiots from supplying fraudulent materials, but it helps with the civil and criminal cases that might result.
That, and I know who the reliable suppliers in the US are. Try and slip in someone I don't know and I will be looking very long and hard at the material. In one case a sample was sent to a lab for analysis. It wasn't what it was supposed to be and the installer had to rip it all out and replace it. They lost a good deal of money trying to save a little bit.
Oh, and I won't use them again, and I let people know who they were and what they tried. Reputation is important in business. A poor one can cost you your business.