We exported Polyester flame retardant DTY yarn to Turkey again.
In the face of the epidemic, no one wants to try their own immunity. Almost all going out to work, taking the subway, going to the supermarket, shopping malls, etc. wear a mask. At the end of the day, it is almost accompanied by masks. The time to wear masks every day often exceeds 8 hours, or even
N series is American standardKN series is Chinese standardFFP series is European standardThe larger the number, the higher the protection level. It is easier to understand with a formula FFP3>FFP2=N95=KN95>KN90Those with a V at the end of the number indicate a valve.All the ones starting with 95 are