Barter is the present and the future of international trade, especially for people who is starting in the import export business. Barter and more: Triangular operations.
Material: non-woven fabric, knitted cotton, melt-blown fabric
Color: White
Function: Dustproof
Mask style: hanging ear
Number of floors: four floors, five floors, six floors
3D three-dimensional artificial face learning, three-dimensional face cutting, all-round fit to the contour of the face, no sense of restraint, effectively isolate pollution Elastic ear straps, soft and comfortable material, wearing non-straining ears. Adjustable nose clip, better fit the face, seamless and safer. There is more space in the snout and breathing is smoother.