geumsok gyeongdo cheukjeonggi
metal hardness tester
testeur de dureté des métaux ; appareil de dureté des métaux
금속 경도 측정기를 사용하여 금속의 경도를 측정했습니다.
geumsok gyeongdo cheugjeonggireul sayonghayeo geumsok-ui gyeongdoreul cheugjeonghaessseubnida.
I used the metal hardness tester to measure the hardness of the metal.
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