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The flow chart illustrates how bricks are created. Overall, the process involves several stages, starting from the extraction of raw clay and ending with the delivery of the finished bricks. To begin with the raw clay is collected by a digger. Secondly, they the raw clay is extracted and passed through a metal grid to strain out all the clay that is retained, and the clay after straining goes through several rollers with a mixture of sand and water. Before being finished bricks, they also go through a wire cutter or are put into a mould to cut and make a perfect shape for the bricks. After that, they put all the bricks into a drying oven with hot air for about 24 to 48 hours to make sure the bricks are perfect. Then they put all the bricks into the kiln at moderate degrees, from 200 degrees Celsius to 980 degrees Celsius and a bit hotter, about 870 degrees Celsius to 1300 degrees Celsius, then put them in the cooling chamber for 48 hours to 72 hours to make sure it cools down. Finally, when packing all the bricks has been done, they are put onto the delivery.