Pa610 burashi waya, ali ndi kachulukidwe kakang'ono, mayamwidwe ang'onoang'ono madzi, kukana amphamvu alkali ndi asidi ofooka, abrasion kukana ndi kukana kutopa, etc., ntchito zosiyanasiyana maburashi mafakitale, monga: zipatso ndi masamba kuyeretsa burashi mpukutu, galasi burashi yopukutira, etc., alth...
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