This is “The Quality Connection” - an internal late ‘70s British Leyland “scare ‘em straight” film for internal management use.
For any of you who haven’t seen a lot of factory process and part creation type things or been on a factory floor, this will be informative on a darker plane than How It’s Made. “How a Lemon is Made”, you could say. Lots of jobbing British industry actors in this one, including a young David Suchet.
NSFW warning for a blink and you miss it of a worker studying boobies instead of his job.