Yuav ua li cas hardness kuaj muaj rau qhov muag tsis pom rivets?

Cov kev sim hardness feem ntau suav nrog: Rockwell Hardness (HR), Surface Rockwell Hardness (HR), Vickers Hardness (HV), Micro Vickers Hardness (HV), Knoop Hardness (HK), Brinell Hardness (HB), Leeb hardness (HL) (rebound txoj kev), ultrasonic hardness test (UCI), Shore hardness (SHORE).

https://www.yukerivet.com/news/pull-rivets-include-aluminium-iron-and-stainless-steel-what-are-semi-stainless-steel-blind-rivets/