Second - and third-rate levels.
The design level of Chinese companies is roughly at the international second-rate level. Some products, such as mobile phone chips from Huawei's Hisilicon, have reached world-class standards. It's not easy enough. It has caught up with most companies in Europe and Japan.
Then there's the mass production technology. The technical level of China's mass production factories is roughly at the international third-class level. The reason is that they only sold second-rate equipment at that time, and after installation, it was third-rate.