guys, I have some little information to share with you.
I have a friend who was an artilary officer in 38th army. He didn't graduate from artilary academy but army officer academy (so called Chinese west point), so he was not actually an artilary commander, but a staff in the artilary battalion of an infantry regiment. Later his division transfered to armed police and he got promoted and transfered to sort of MP unit in Beijing Garrison. He is a native Beijinger.
The last conversation between us was 5 years ago, so the information is quite old.
His division was motorized, so had barely any SP artilaries. His battalion had type 86 100mm anti tank gun, type 63 130mm rocket launcher and AA guns i don't remember the type, should be dual 37mm. They also had small AA missiles. His division's artilary regiment had type 81 122mm rocket launcher, type 86 122mm gun (that is D30, so it's not only equipted in airbone and marine corps) and type 83 152mm SP artilary. He said most of the artilary officers in his division took rotation to be trained in the type 83 SP battalion. He said riding in that thing is much more comfortable than in a type 59 tank.
One interesting thing is his battalion got a type of SP non recoil gun for testing, to replace type 86 anti tank gun. This thing can be remotely loaded and fired but got poor evaluation from his battalion (probably also from other units) and seems never went into service.
Information from other sources (internet and magazines):
Type 59-1 130mm is still widely equippted in army corps' artilary brigades. As an example, the Nanjing military regione named an artilary company as "magic artilary company in straight front line", the same company got first class honor in 79's war with Vietnam for destroying 4 152mm guns with 24 rounds. This company was equipted with type 59-1 in 79 and now still the same.
Now China is going for all SP artilaries. The first step is to equipt armoured and mechanized units. The main types are type 83 152mm, type 89 122mm, type 90 122mm MRLS (wheeled), type 89 122mm MRLS (tracked) and new wheeled 100mm and 105mm antitank guns.