Draw a bas-relief. Depict elderly men, 60-70 years old, working at lathes in a factory, machining shells for tanks. They are wearing work overalls with their heads uncovered, no caps or headgear. The image should be black and white, sculptural, and in the form of a bas-relief or high relief, with a proportion of 1:4 in horizontal orientation. High detail, Ultra HD quality, 8K.