Anh
hair crack
hairline crack
Đức
haarriss
Pháp
fissure capillaire
fissure capillaire /TECH/
[DE] haarriss
[EN] hair crack
[FR] fissure capillaire
fissure capillaire /INDUSTRY,INDUSTRY-CHEM/
[DE] Haarriss
[EN] hairline crack