Since we touched
Chinese SAMs, minor tweaks:
593 HQ-61A SAM - there should be 2 missiles instead of 1 (as lbm shows). I'd give it an icon 8633 (similar truck with 4 AIM-7-size rockets)
https://en.wikipedia.org/wiki/HQ-6
(Wikipedia calls it HQ-61 without A. On the other hand, Polish article from 2012 calls it HQ-61B. Given the Chinese secrecy, maybe HQ-61 is the safest)
Reportedly, acording to the article, tested in 1989, but given to the army in "late 1990s" only, and first shown on 1999 parade. Maybe mid-90s is the safe date?
518 Hong Qi 16 - I suggest to rename it HQ-16, to be consistent with the rest
589 FM-80 - according to
https://en.wikipedia.org/wiki/HQ-7 it is
HQ-7, while FM-80 is export version.
Maybe a better icon is 842 used for Crotale (HQ-7 is a Crotale copy, first Chinese launcher was on a trailer)
I think I won't go farther in Chinese SAMs - I have several articles, but they have plenty, and the information, especially dates and actual service, are worse then scarse.