As the representative of ancient Chinese weapons, the manufacture of knives and swords is also a famous traditional craft in China, which has a history of more than 2500 years. The manufacturing technology of knives and swords in China has a very mature technology, generally speaking, it needs to go through steel selection, steel treatment, forging, cutting edge, quenching and grinding before it will be formed. And for the knife handle, sheath Tan and other knife assembly production, this is another technology, but also need to be decorated by special metalworking, these two processes have their own famous teachers. The knife masters in history have their own factions, and some are the exclusive craftsmen of the shogunate.