Pyrography, also called pokerwork or wood burning, is known as one of the "three treasures" of Nanyang, Henan Province. It involves using an iron poker heated to 300-800 C to etch materials such as bamboo, wood, silk and rice paper. The art is believed to have flourished in the court of the Eastern Han Dynasty and boasts a history of around 2,000 years.
(Video source: Kuaishou; Produced by Wang Ruofan)
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