Daiquancheng Biotechnology (Shanghai) Co., Ltd., established on April 21, 2020, is located in building 5, No. 555, chexin Road, Songjiang District, Shanghai. The plant area is more than 3400 square meters. Professional research and development, manufacturing, sales of daily butterfly protective masks, cup protective masks, disposable medical masks, disposable civil masks. FFP2 protective mask has obtained CE certification, certificate number: BMP 729640; the company has national industrial product production license, safety mark of special labor protection articles, medical device production license and medical device product registration certificate, and civil protective products have passed the group standard PM2.5 protective mask taj1001-2015 and national standard daily protective mask GB / t32610-2016 certification.