White dross from primary aluminium production and from secondary recycling operations tonlos contains useful quantities of aluminium that can be extracted industrially. The process produces aluminium billets, together with a highly complex waste material. This waste is difficult to manage. Aluminium metal has an appearance ranging from silvery white to https://manuelvdkpv.wikinewspaper.com/2961274/eine_Überprüfung_der_gulf