Twin phab ntsa polycarbonate hollow daim ntawv raws li cov ntaub ntawv tseem ceeb, siv cov txheej txheem ntau lawm, qhov chaw faib khoom ntawm high concentration UV co-extruded txheej muaj qhov zoo ntawm kev tiv thaiv UV, lub teeb, lub teeb, yooj yim installation, nyab xeeb thiab txhim khu kev qha, tsis tshua muaj nqi. thiab kev ua haujlwm siab, yog ib qho ntawm cov ntawv polycarbonate series feem ntau siv hauv ntau yam.