Izikhwama zethu zezitshalo zenziwe ngezinto ze-PE, ezingasiza izimpande ziphefumule futhi zigcine impilo, zikhuthaze ukukhula kwezitshalo. Isibambo esiqinile sikuvumela ukuthi uhambe kalula, uqinisekise ukuqina. Ingagoqwa, ihlanzwe, futhi isetshenziswe njengesikhwama sokugcina izingubo ezingcolile, amathuluzi okupakisha, njll.