The company passed the ISO9001 international quality management system certification.masks dozens of models for the European standard EN149 and get FFP1, FFP2 and FFP3 quality level certification respectively; dozens of models for AS / NZS 1716 Standards Australia and the United States NEISON, NIOSH N95, N99 standard international certification.Double victory license mesh valve masks and face cloth masks and other national PatentOffice.
