Thread Content
In 1965, China’s first self-designed 12-meter deep-hole drilling machine was manufactured by the workers at the Shanghai Heavy Machine Tool Factory. It can drill long and slender circular holes that cannot be machined by ordinary machine tools, and is an essential machine tool for processing large shafts used in heavy machinery, motors, and ships.
Can you believe it? Such capabilities already existed back then
One first doesn’t mean much, but multiple firsts lay a solid foundation
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