So some quick notes based on what I have seen.
You probably want to be on total mobalization and not war economy. You can get there by going down the spiritual mobalization focus
Not sure why you ratcheded up your manpower law. Its not really needed this early on and you waste 150 pp. Probably same issue with closing trade
No need for Mot recon on garrison, no need for cav recon on Marines, or imho no recon on most non tank divisions. It drains your support equipment and does not do much in that terrain
I would not do Manchurian route personally. Going down the other path is much more beneficial imo
Im not sure why you have mixed in 3 tanks divisions into your infantry divisions, or if you are trying to do space marines or something, but it doesn't really work that well as Japan because
1. You dont have time on IC output to field that many
2. You dont have enough tanks to field everything, which means that those divisions gets pierced anyway
Stuffing tanks in land based divisions makes them just move slow, especially in China where theres a lot of uneven terrain to slow it down. Tying them to land divisions will make them all move at 4km or whatever the base is.
Probably put down the infantry divisions to 20W. That will change next update but works for now. It also helps a bit with your lacking infantry equipment
I would personally focus more on the air war, make sure to contest air and use tac/cas since the Chinese generally dont have AA protection and their base template is relatively bad and not rely so much on tanks