Monga inu nonse mukudziwa, pulasitiki nkhungu ndi chidule cha nkhungu ophatikizana, amene chimakwirira akamaumba psinjika, extrusion akamaumba, jekeseni akamaumba, kuwomba akamaumba ndi otsika thovu akamaumba. Kusintha kogwirizana kwa nkhungu yopingasa, nkhungu ya concave ndi dongosolo lothandizira lothandizira, titha kukonza mapulasitiki angapo ...
Werengani zambiri