CHIKWANGWANI Glass anabadwa mu 1930s ndi. Ndi mtundu wa zochita kupanga sanali zachitsulo zinthu umatulutsa pyrophyllite, khwatsi mchenga, miyala, dolomite, calcite, brucite, asidi boric, koloko phulusa ndi zipangizo zina mankhwala yaiwisi. Iwo ali kulemera kuwala, mphamvu yapamwamba, mkulu ndi otsika kutentha kukana, corrosio ...
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