Daim ntawv thov tiag tiag ntawm chav sib tham LED zaub yuav ua rau muaj kev phom sij rau cov zaub rau ntau yam laj thawj.Nws yuav tsum muaj kev tiv thaiv kom tsis txhob dampness, tshav kub, fouling, corrosion, hluav taws xob zoo li qub, tsiaj txhu, thiab kev saib xyuas raws sij hawm thiab ...
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