Mawonekedwe
1. Mogwirizana ndi "GA 420-2008 chipwirikiti suti" ndi "GA141-2010 apolisi thupi zida";
2. Magwiridwe: Kuchokera pamapewa mpaka kumapazi, mbali zazikulu za thupi zimatetezedwa mokwanira, ndipo malo otetezedwa bwino ndi osachepera 85%.
3. Mphamvu: Zopangidwa ndi polycarbonate ndi polyethylene yapamwamba kwambiri;
Tsitsani