The raw lead produced out of rotary furnaces is processed in kettles under different procedures and temperatures. The scope is the removal of many of the foreign metals and of impurities in order to produce either soft lead and all the alloys required by the market. All the ancillary equipment like pumps, agitators, dross removers, oxy injectors etc are used for such operations. The final products are cast in ingots in a dedicated line which provides to final robotized stacking and strapping in automatic way.