the cpcell brand ultrafiltration membrane module produced by our company has obtained the license for drinking water safety and hygiene products in zhejiang province. our company is the only company that has obtained this certificate among many ultrafiltration membrane production enterprises in the province. the approval procedure of this certificate is strict, not only it is necessary to fully comply with the hygienic parameters of the membrane module, and more importantly, to meet the technical specifications of the ultrafiltration membrane. our company's ultrafiltration membrane module is the preferred supplier of many water purification enterprises in the country. this certificate is also a necessary certificate for water purification enterprises.