A hard wearing metal is one that can take a punch. Used in jewelry for men, these metals are not easily smashed or bent.
granite
Fatugue
To help maintain your balance.
Nankeen
There can be, if you believe hard enough.
Wearing a construction hard hat protects you from the heat along with head protection. Even the slightest amount of force can cause an injury to the head, but wearing a hard hat can weaken the impact.
Maple, Hickory and Oak come to mind.
Well-made, hard-wearing.
hard wearing means that it is physically strong and it doesnt wear out that easily it takes ages for it to wear out.
In theory, everyone wearing a hard-hat is likely to have had their life saved.
Basically, coated with a type of hard wearing Teflon.