They’re building Royal Enfield motorcycles:
That’s a very cool bike. The company was founded in England in the 1850s; they originally made sewing needles. Then came boneshakers, springs for seats for “safety bicycles,” and then bicycles themselves. Then rifle parts –that’s where the “Enfield” moniker came from, and their slogan for all their stuff: Made like a gun. Then came motorcycle precursors: tricycles and quadricycles with small engines. They tried making cars around the turn of the twentieth century. They looked like lightly armored personnel carriers and had eight-horsepower engines, not considered enough to mow your lawn while sitting down nowadays. They got over that urge and started making true motorcycles, and sold a bunch to the army for World War I. They had a neato one with a stretcher sidecar.
The company was a pioneer in using the saddle tank (a fuel tank that sits atop and straddles the frame) which you see the fellow in the video striping so ably. In the late forties, the company opened up a shop in Madras, India, to supply motorcycles to the Indian army. At first they just assembled parts sent from England; they eventually made the whole thing themselves. They made one design, unchanged, for thirty straight years. England gave up manufacturing pretty much anything in the second half of the twentieth century, and started importing the bikes from India.
Hand skills like that fellow in the video displays are always show-stoppers in any manufactory.