Restorers devoted to document protection in NE China(1/5)

A restorer removes stains from a document with a brush at the Harbin Archives Bureau in Harbin, northeast China's Heilongjiang Province, Oct. 18, 2022. (Photo: China News Service/Sun Hanlun)

Restorers have attempted to restore documents and records in the bureau.

A restorer repairs a document with a magnifying glass at the Harbin Archives Bureau in Harbin, northeast China's Heilongjiang Province, Oct. 18, 2022. (Photo: China News Service/Sun Hanlun)

Restorers spray water on the damaged file to remove the stains at the Harbin Archives Bureau in Harbin, northeast China's Heilongjiang Province, Oct. 18, 2022. (Photo: China News Service/Sun Hanlun)

Restorers dry the well-repaired documents on a wall at the Harbin Archives Bureau in Harbin, northeast China's Heilongjiang Province, Oct. 18, 2022. (Photo: China News Service/Sun Hanlun)

Restorers repair damaged documents at the Harbin Archives Bureau in Harbin, northeast China's Heilongjiang Province, Oct. 18, 2022. (Photo: China News Service/Sun Hanlun)