Polycarbonate Hollow muaj zog tiv thaiv huab cua, cuam tshuam tsis kam, thiab tsis yooj yim tawg, muaj peev xwm tiv taus huab cua hnyav. Nws lub teeb kis tau zoo heev ua kom muaj qhov ci ntsa iab sab hauv tsev, ua rau nws nyiam cov khoom siv rau vaj tsev shading thiab kho kom zoo nkauj.