The diagram explains the way in which metals are made for the building industry. Overall, there are 8 stages in the process, beginning with the mining of the rock and casting the shape.
To begin, the rock which contains lead and other metals is drilled with drilling machines on the site. This metal is then placed into a delivery truck that navigates to the factory. Next, the rocks are crushed to smaller particles with water assistance in this process.
Following this, water is added to the mixing operation tank to produce a lead mix. After that, proceeding to filtering stage, the previous lead mix then filtered with pine oil, the mixture is refined by heating it up to 1400 celcius, waste gas is disposed from this process. Then, melted lead and other metals are separated in kettle.
Finally, the last process is casting where the melted lead that go through the phases and pass eventually they put in casting to shape the metal for the last stage.
