Razor barbed daim kab xev tseem hu ua concertina hlau, rab chais hniav hlau, nws muaj cov hniav daim kab xev thiab cov tub ntxhais hlau.
Feem ntau, cov khoom yog tag nrho cov kub dipped galvanized.
Nws yog feem ntau siv ua ke nrog lub laj kab kev ruaj ntseg.