Download a btsprit(BT software) on the Internet, then install it, and then use one or two seeds on it to attract countless seeds, including production management after all. This doesn't cost money, but it takes a long time to download online.

I also have relevant contents at hand, but the capacity is too large to send to you. I have been using the above methods, and the effect is very good. The content is very comprehensive, and almost all the lectures by Yu Shiwei, Ceng Shiqiang, Welch and Toyota have all the contents.