Why helmet….. Actually, this should be the first entry: why is the helmet as a project to help solve problems with the COVID-19 pandemic? The use of insulating helmets of this type. read more…
Day: 30 April 2020
Why helmet…..
Actually, this should be the first entry: why is the helmet as a project to help solve problems with the COVID-19 pandemic? The use of insulating helmets of this type. read more…