Việt
lõm co
lỗ co
Anh
shrink cavity
shrink hole
Đức
Lunker
Pháp
retassure
shrink cavity,shrink hole /INDUSTRY-METAL,ENG-MECHANICAL/
[DE] Lunker
[EN] shrink cavity; shrink hole
[FR] retassure
lõm co, lỗ co