"Every time the knife falls, you can hear your own heartbeat. You can make micro-carvings on gunpowder, and there can be no slight difference. This is a critical shot, strategic missiles, manned spaceflight, Every weapon of a great nation cannot be separated from you. Just like the sword in my hand, it was forged in twenty-six years. You are a craftsman of a great nation." This is a tribute to Xu Liping.
Currently, gunpowder shaping is a problem all over the world and cannot be completely replaced by machines. The force of the knife depends entirely on the worker's own judgment. Whether the accuracy of the knife surface is up to standard directly determines the precise range of the missile. 0.5 mm is the maximum allowable error in the accuracy of the powder surface of the solid engine, and the error of the gunpowder surface carved by Xu Liping's hands does not exceed 0.2 mm, which is perfect. In order to eliminate potential safety hazards, Xu Liping also designed and invented more than 20 types of medical facial plastic surgery knives, two of which have obtained national patents, and one was named "Liping Knife" by his employer. Due to long years of carving gunpowder in the same posture and the sequelae of gunpowder poisoning, Xu Liping's body became tilted to one side and most of his hair fell out. For 28 years, he took great risks to carve gunpowder and was hailed as a "craftsman of a great country".
Perception: Ordinary position, extraordinary performance.