Cov ntaub ntawv tseem ceeb ntawm cov dej nyab txi coj muaj cov hlau alloy, hlau stainless, yas thiab almoy .
Aluminium Alloy: Txhuas Alloy muaj cov dej nyab zoo, yog li nws thiaj li ua tau zoo rau sab hauv tsev, thiab nthuav dav lub neej thiab lwm lub sijhawm.
Stainless hlau: Stainless hlau muaj zoo corrosion tsis kam thiab kub {{} Nws yog qhov chaw ua si, thiab lwm yam tom qab lub teeb, thiab lwm yam}} alloy: alloy dej nyab muaj qhov zoo ntawm kev coj ua, oxidation tsis kam, thiab siab muaj zog rau cov chaw xav tau, xws li ntau lub chaw ntau, thiab lwm yam.
Ib qho ntxiv, lub plhaub sab nraud ntawm cov dej LED keeb kwm yog tsim los ntawm ntau qhov kev tiv thaiv kev nyab xeeb yog ua los ntawm 46 1}} Cov pa tiv thaiv zoo nkauj hauv tsev thiab sab nraud.
