Ke liteko life tsa ho thatafala tse teng bakeng sa li-rivets tse foufetseng?

Liteko tse tloaelehileng tsa ho thatafala li kenyelletsa: Rockwell Hardness (HR), Surface Rockwell Hardness (HR), Vickers Hardness (HV), Micro Vickers Hardness (HV), Knoop Hardness (HK), Brinell Hardness (HB), Leeb hardness (HL) (mokhoa oa ho boulela), ultrasound 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/