there is a video for no 1. you are blind if you ignore this.None of these tells anything about the progress,it's all speculation. I know ICRD has been verifying domestic equipments for a while,and the result can be seen in all kind of equipments but lithography machine.
I didn't even want to mention this,but since you brought it up,fine,let's take a look:
See it?Huazhuo Jingke didn't ship any double stage component in 2019. And guess what?This company is delisted from Shanghai stock exchange market now,that just tells you that Huazhuo is not in a good shape.
no.4. Maybe you should look at year 2022.