Shenzhen XinSu Technology Co.
And the North Xinyuan
If you say that the small ones are all counted that's too much
But the really good ones are fewer, and the ones that I know of are mainly the above
Which I know more about Microsoft, because our company is acting as an agent for this product itself. This product is also Microsoft's chosen partner for Borealis technology in China, as well as Lenovo's partner for business computers.
The other two are more or less known as competitors.
What do you want to know about, don't worry, I'll help tell you objectively.