The given diagram illustrates the process of brick making [Writing task 1]

Brick manufacturing

The given diagram illustrates the process of brick making.
Overall, there are essentially four stages in the production of brick beginning with the digging clay and ending with new products packaging and delivering to be purchased.

At the first stage of producing brick, clay is removed from the earth by using digger and put through a mental grid to a roller. After that, it is being mixed with sand and water before forming the bricks in two ways. Either by a wire cutter or a mould.

During the next step, they are put into a drying oven within 24-48 hours. Those bricks are then heated in a special kiln at a moderate temperature (200C-900C) and at a higher temperature (870C-1300C) before treating in a cooling chamber for 48-72 hours. At the final stage, the bricks are packaged and transported to customers for display.

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  Theprocessofbrick.gif
  

Hi, I think you have done a pretty good job of explaining the diagram. I am not sure where you are getting the four stages though. I see either 6 stages plus delivery, or 5 stages plus getting the clay and delivering the bricks. Here are some specific suggestions:

with the digging of clay and ending

with new products packaged and delivered to be purchased. {"new products" sounds like newly developed products - I would say "completed bricks". And I would leave out the "to be purchased", maybe the bricks have already been purchased and are being delivered directly to the final customer - try not to make assumptions that are not in the diagram}

... by using a digger and put through a metal grid onto a roller.

After that, it is being mixed

water before being formed into the bricks in two ways, either by a wire cutter or using a mould.

a drying oven for a period of 24-48 hours.

... (200C-900C) and then at a higher ... before being treated {I don't think "treated" is the right word here - it is not like anything is being added to them, they just cool down}

Thks very much <3 "being treated" I mean the bricks are in the process of handling.

Yes, treating is not the same as handling. Think of a water treatment plant, where water is filtered and chemicals are added to it. Or steel may be treated by adding a rustproof coating to it.