Zotsatira za pickling ndi passivation pa prefabrication, kuwotcherera, kuyezetsa, ndi kutentha mankhwala adzachititsa okusayidi chitsulo, kuwotcherera slag, mafuta, ndi dothi zina kudziunjikira pa chitoliro (mpweya zitsulo chitoliro, mpweya mkuwa chitoliro, zosapanga dzimbiri chitoliro) , zomwe zimachepetsa dzimbiri ...
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