Mchenga Wamtundu, Mchenga Wopaka utoto, Wopanga Mchenga Wopanda Panja Wopanda Poizoni
Mchenga wamitundu yosiyanasiyana umagawidwa kukhala mchenga wamitundu yosiyanasiyana, mchenga wamitundu yosiyanasiyana, ndi mchenga wamitundumitundu.Makhalidwe ake ndi: mitundu yowala, kukana kwa asidi ndi alkali, kukana kwa UV, komanso kusazirala.
Mtundu: mchenga wamtundu wachilengedwe, mchenga wamitundu.
kukula: 10-20.20-40.40-80.80-120.120-180.200mesh.
Lembani uthenga wanu apa ndikutumiza kwa ife