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Zomwe zimagwiritsidwa ntchito kawirikawiri ndi zinthu zamkuwa
Brass ndi chitsulo cha alloy chomwe chimapangidwa ndi mkuwa ndi zinc. Chifukwa cha zinthu zapadera za mkuwa, zomwe ndifotokoze mwatsatanetsatane pansipa, ndi imodzi mwazitsulo zomwe zimagwiritsidwa ntchito kwambiri. Chifukwa cha kusinthasintha kwake, pali mafakitale ndi zinthu zomwe zimagwiritsa ntchito ...Werengani zambiri