What's the difference between North Korea, Zhao and Wei's weapon carving?

The weapons of Shanxi, Korea, Zhao and Wei have the same characteristics, mostly in the name of engineers, metallurgists and other supervisors, and also with short and straight knives. The three countries are slightly different, but their literary styles and calligraphy styles are different. Zhao weapons are mostly carved by straight paintings, straight and sharp; Wei weapons are slightly round; In the second year of the late emperor Aizong (375 BC), Zheng was destroyed and the capital was changed to. The author is unpretentious and often writes the word "Zheng Wuku". His six-year Grignard Ringo structure stretched horizontally, and the lines were healthy and elastic, but it was a mess to repair Yulin Ringo in three years and Yulin Ringo in four years.