Ana bib PU mathalauza amvula amapangidwa ndi 100% ECO-wochezeka poliyesitala / poliyesitala zakuthupi, ndi zofewa, ana athu akavala amamva bwino kwambiri.Chinanso pali chomangira chosinthira lamba.Chofunika kwambiri ndi chowunikira. pa mwendo, mutavala mathalauza amvula m'masiku amvula, sungani ana athu otetezeka.