Mavavu opangidwa ndi zitsulo zopangira zitsulo amagwiritsidwa ntchito kwambiri m'mafakitale ambiri.Chifukwa cha ntchito yake yabwino kwambiri, imagwiritsidwa ntchito kwambiri mumitundu yosiyanasiyana yamadzimadzi monga mpweya, madzi, nthunzi, zowononga zosiyanasiyana, matope, mafuta, zitsulo zamadzimadzi komanso ma radioactive media.Koma mukudziwa chiyani ...
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