I was picking a Chinese PLA force for a Sino-Vietnamese War (1979) battle when I realised that I couldn’t find any units with flamethrowers. I think the PLA may have used them at the time. Here is a photo that is supposed to be from the conflict:
I’ve flicked through the engineer units in obat14 and found only one equipped with flamethrowers: Unit 328. The start date for the unit is January 1981. The Sino-Vietnamese War was fought in February 1979 – although there were a few border skirmishes in the 1980s as well. Perhaps the start date for unit 328 could be reviewed?