The regular manufacturer of Dongpai masks is located in the Northeast Coal Machinery Logistics Center of Diaobingshan South Industrial Park, Tieling City, Liaoning Province. Dongpai masks are produced by Liaoning Maggie Medical Equipment Co., Ltd. The company's specific address is the Northeast Coal Machinery Logistics Center in Diaobingshan South Industrial Park, Tieling City, Liaoning Province. Therefore, the regular manufacturer of Dongpai masks is located in the Northeast Coal Machinery Logistics Center of Diaobingshan South Industrial Park, Tieling City, Liaoning Province.