Cov lus tam sim no sawv cev rau European tus qauv U (UPN, UNP) raws,UPN hlau profile(UPN beam), specifications, khoom, qhov ntev. Manufactured raws li cov qauv:
DIN 1026-1: 2000, NF A 45-202: 1986
TS EN 10279: 2000 Kev Ua Haujlwm Zoo
TS EN 10163-3: 2004, chav kawm C, subclass 1 (Surface condition)
TIAB SA 42 5550
TIAB SA 42 5550
PIB: STN 42 0135