Kugwiritsa ntchito zinthu zabwino kwambiri za PE, mtundu wowala.Amagwiritsidwa ntchito kwambiri pochenjeza zapamalo komanso kudzipatula kwadzidzidzi kapena malo omanga ndi malo owopsa.
Chotchinga Chenjezo tepi imatchedwanso chizindikiritso tepi, pansi tepi, pansi tepi, chizindikiro chizindikiro, etc.