The cold weapons of ancient China are indeed inferior to the three famous swords in the world.
There are reasons for this.
The first is the high pressure of the ruling class, which makes The development of folk cold weapon casting technology is slow. In fact, it was not only the Qin Dynasty that took over the world's iron weapons, but many other dynasties also had similar behaviors. Most of the state's forged weapons are standard, and cost and durability need to be considered. Therefore, the cold weapons used in Chinese wars are Spears, spears, halberds, halberds, and sabers are mainly rough and durable heavy weapons.
Secondly, the war machinery in ancient China emerged too early. The emergence of crossbows restricted the development of hand-held cold weapons. As early as the Shang and Zhou dynasties, China had crossbows, and by the Qin Dynasty it had become very popular. After maturity, repeating crossbows, hand crossbows, and arm crossbows appeared one after another, the status of hand-held cold weapons became even lower. Chinese dynasties have attached great importance to the development and control of crossbows. Civilians can hold bows, but holding crossbows is definitely a serious crime.
Thirdly, the Chinese have a bad habit that is rotten to the core, that is, they cling to their craftsmanship. If most craftsmen have no heirs, they will even let their craftsmanship disappear completely. Such lost craftsmanship will be numerous in 5,000 thousand years. number. Any good thing, no matter how good it is, as long as it has not been handed down, it is equivalent to nothing!
In addition, I despise some people's practice of bragging about the invincibility of Tang knives. Japanese knives did learn to integrate Chinese knife-making technology, but after many years of development, Japanese knives have gone out of their own way. Along the way, unique and advanced steel-cladding, quenching and other processes have been developed. In the Song Dynasty after the Tang Dynasty, there were poets who wrote poems such as "The treasured sword has come out of Japan", which shows that the Japanese swords at that time were superior to most of the knives in the Song Dynasty.