Cov khoom siv hluav taws xob tsawg halogen-dawb polyolefin ua lub luag haujlwm tseem ceeb hauv kev tsim kho qhov muag cable, tshwj xeeb tshaj yog nyob rau hauv cov chaw uas muaj kev nyab xeeb hluav taws kub, xws li subways, tunnels, cov tsev siab siab, lub zog hluav taws xob, thiab lwm yam, uas tsis tuaj yeem muab qhov tsim nyog. kev sib txuas lus ua haujlwm, tab sis kuj txo qis kev hem thawj rau cov neeg ua haujlwm kev nyab xeeb thiab ib puag ncig thaum muaj xwm txheej ceev!