Cov hniav barbed hlua laj kab yog ib qho kev tiv thaiv kev nyab xeeb barbed hlau mesh siv rau ciam teb barrier, railway thiab txoj kev loj cais, zej zog thiab nyob deb nroog zoning thiab tiv thaiv kab mob.Nws muaj qhov zoo ntawm kev tsim khoom yooj yim thiab kev tsim khoom, muaj zog ib puag ncig siv tau, yooj yim xa tawm sai ...
Nyeem ntxiv