Tsev cog khoom Screen System
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Tsev cog khoom Screen System
Lub luag haujlwm tseem ceeb ntawm lub kaw lus yog shading thiab txias nyob rau hauv summerand ua tshav ntuj diffuse nyob rau hauv tsev xog paj thiab tiv thaiv cov qoob loo frpm muaj zog lighe hlawv.