I don't know about Shanghai, but I know there is a very good specialized training institution in Suzhou, which is very famous in Suzhou. Our company trained there before, and the teachers were very professional and weighty. Why don't you go and see a salesman, whose phone number is 05 12-68363328, and his last name is Dan. You can consult. If the phone number is right, consider it a trip to Suzhou.

Hehe, for reference only! !