我想知點解你會信佢講嘅野
https://en.wikipedia.org/wiki/History_of_crossbows#Han_dynasty
如果睇wiki 其實係有大規模裝備
仲要去到明代就用火器取代
During the late Ming dynasty, no crossbows were mentioned to have been produced in the three-year period from 1619 to 1622. With 21,188,366 taels, the Ming manufactured 25,134 cannons, 8,252 small guns, 6,425 muskets, 4,090 culverins