Anh
hollow section
tubular section
Đức
Hohlquerschnitt
Rohrquerschnitt
Pháp
section creuse
section tubulaire
section creuse,section tubulaire /INDUSTRY-METAL/
[DE] Hohlquerschnitt; Rohrquerschnitt
[EN] hollow section; tubular section
[FR] section creuse; section tubulaire