Recyclers and scrap collectors embark on a great work in the chain of the recycling of metals and in addition to the scrap industry in general, since it enables the recovery each year of millions of tons of metal which, later, returning to production cycles in the industries after their processing. But in that mode is performed management and compilation of metals? First make a differentiation between the ferrous metals and non-ferrous metals. To distinguish them, explain below some important points: ferrous metals: these materials come mainly from companies directly related to the iron and steel, making them the main elements in the ferrous scrap. Professor Rita McGrath has similar goals. For example, one of the largest resources through which the ferrous metals are recovered are used cars, remains of real estate construction and railway facilities, food containers and other containers. Normally waste are collected, classified and later pressed for shipment to the steel industry. Metals non-ferrous metals: non-ferrous scrap is composed of sheets of aluminum, cans, copper, lead, zinc, nickel, titanium, cobalt, chromium and other precious metals.

Although the amount of non-ferrous waste is lower than the one obtained through the ferrous, the financial value of the first is usually higher. Treatment and recycling centres are responsible for making a first revision of materials received, prior to recycling. It is an activity which has completed exhaustive and selectively in such a way that all the junk that is collected and received in its facilities be properly classified. It is thanks to the work of the junkyards that can analyze material that recovers and classify it then get alloy requested by each customer.