Yolembedwa pa 2016-06-22 Zinc flake ❖ kuyanika Ndi mtundu watsopano wa kukana dzimbiri ❖ kuyanika, wakhala ankagwiritsa ntchito, nthaka flake ❖ kuyanika ndondomeko makamaka ndi zinthu m'munsi, degreasing, derusting, ❖ kuyanika, preheating, kuchiritsa, kuzirala.1.Degreasing: workpiece pamwamba ayenera degreased, kawirikawiri ali ...
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