Black Iron Casting Road: Starting from Standardization

The world of immortality only digs graves and uses antiques? The weapon has been repaired for thousands of years, but no one knows how to make it. Su Yu came through time travel, with a microscope of materials science in his palm and a blueprint of industrial design in his mind. Stress, tolerance, standardization, assembly line - when a civilization that has been lost for thousands of years meets modern engineering thinking. The day when the fire is rekindled is when the world's utensil system is rewritten.