Anh
ball hardness testing
hardness test
indentation test
Đức
Kugeldruckprobe
Kugeldruckversuch
Pháp
billage
essai de billage
ball hardness testing,hardness test,indentation test /TECH/
[DE] Kugeldruckprobe; Kugeldruckversuch
[EN] ball hardness testing; hardness test; indentation test
[FR] billage; essai de billage