Lanzhou Military Region doesn't exist anymore. It has been merged into Western Theater Command. I don't have to prove anything further
Like LD52 in the picture which clearly depicts Amphibious CAB from 73rd Group Army. So, L doesn't apply to Lanzhou but for PLAGF
View attachment 118574. D here means Eastern Theater Command (东方 Dōngfāng)
Stop spreading misinformation. We've discussed this before, as seen
here,
here, and
especially here.
You are confusing license plate numbers with vehicle hull numbers. These are completely different things.
All Chinese vehicle license plates (both civilian and military) are governed by a unified set of regulations (7th edition) that was finalized in 2012 and promulgated in May of 2013.
In 2016, China's military regions were re-organized into five theater commands, but this did not much affect the license plate system, and existing military vehicles continue to wear the same plates under the 7th edition.
Under the 7th edition, military plates begin with two English letters, followed by five Arabic numerals. The first letter is reserved for the Military Region, the second letter is reserved for the operational type, and the first Arabic numeral is reserved for the provincial or sub-regional military command subordinated to the Military Region.
LJ
85702 is a license plate number because it has
five numerals and is literally printed on a license plate. LD
522403 is
not a license plate number because it has
six numerals. So please stop insisting that license plate numbers are the same as vehicle hull numbers.
This is a license plate (five numerals):
This is a hull number (six numerals):
Here's another example. In the video below, Mengshi-III vehicles have their license plates attached to the rear left. Each plate has five numerals, as required by law: