03 IiRefractories zoBugcisa obuPhezulu ezisebenza kakuhle
IiCenospheres ezikwabizwa ngokuba ziimicrospheres, azinamsebenzi, zinee-spheres ezingenanto kwaye zinobunzima obuphantsi. Kwaye zinobunzima obuphantsi, azinatyhefu, azimelani nokugqwala, zizinzile kubushushu, zinamandla aphezulu, zikhusela kakuhle, ziyahlula isandi, azifunxi manzi...