RACKMASK
@rackmask
KN95/KN100 fashion masks,Our protection level and filtration efficiency are the same as ZIMIAIR, because we are manufactured by ZIMIAIR
rackmask.com
ID: 1769599836075298816
http://www.rackmask.com 18-03-2024 05:41:20
245 Tweet
784 Followers
190 Following
Bit of fun, decided to check mask straps on my tensile strength testing machine (as one does💅🏻). Single strap attachment point load limit: 3M VFlex 9105: 1,564g Zhou Liang's mask ZM9541: 2,421g Zhou Liang's mask claimed 40n (4kg) across the whole strap (both points) so they