@ougoah
China has never gained access to the 2A46 or any T72 variants. After the Sino Soviet split, no new Russian armored vechicles were procured aside from a T62 captured in a border clash.
ZPT-98 is either made from scratch, or more likely an upgunned version of the 120mm used before.
It’s bore pressure is significantly larger than US/Russian designs.
Good article on the gun’s development.
You can look at videos of the ZPT-98 firing on the move vs T72B3M with the newest 2A46... the difference is very big
T-72 tanks from Romania (probably T-72M) were sent to China during the 1980s. Romania first received the T-72s from USSR in 1978-1979. There's also saying Iran sent some captured Iraqi samples over to China too