1, Kuchita ndi PVC chitetezo zinthu, ndithudi palibe poizoni, ofewa ndi omasuka kukhudza kukhudza2, Yokhazikika 2.1A kulipira mwachangu, chitetezo komanso magwiridwe antchito apamwamba amafoni ndi piritsi3, kuchita ndi 100% mkuwa pachimake, chingwe chachikulu ndi kufala ntchito, okhazikika kulipira.4, ukadaulo umodzi wopangira ukadaulo, wopanda kusweka, wokhazikika komanso wokhazikika.5, High khalidwe kupanga muyezo, ntchito mtengo kwambiri.