Скачать или смотреть The blacksmith "adds patterns" to the steel bars in this way.

This video documents a blacksmith working in a simple forge, heating a square steel bar until it glows red and then twisting it. The video shows the steel bar being inserted into a square hole in the anvil for stability. The heated area glows orange-red. The worker uses pliers to grip the upper end of the bar and, using leverage, rotates it, causing the still-hot, malleable steel to twist, creating a uniform, continuous spiral pattern on the surface. This process reflects the fundamental principle of "shaping while hot" in traditional forging and demonstrates the craftsman's experienced control over temperature, force, and rhythm. Too low a temperature would cause the material to crack, while too high a temperature would lead to a loss of shape control. The appropriate red-hot state allows the steel to be shaped without damaging its internal structure. Through this hot-twisting process, ordinary square steel bars are given decorative appeal and distinctiveness, often used in the manufacture of metal components such as railings, doors, windows, and handrails. This not only enhances the visual appeal but also embodies the value of combining practical function with aesthetic expression in traditional metalworking.