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The diagrams illustrate the processes and equipments are used to make cement and how to make it into concrete in construction purpose.

There are five main stages in the process of producing cement. Firstly, limestone and clay are crushed into powder through a crusher. After that, a mixer will blend this compound.In the third stage, the powder is passed to a rotating heater which works with heat. In the next step, it goes into a grinder and become cement when it comes out. Finally, the cement is packed in bags.

Referring to the concrete production, this procedure begin with a combination of 15% cement, 10% water, 25% sand and 50% small stones. Then,these four elements are blent in a concrete mixer.

As we could see above, there are fewer and easier steps in the concrete production than the processes of making cement. Further more this step does not work with heat.

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The diagrams illustrate the processes and equipments (wrong form. Equipment is non-count.) are used to make cement (ungrammatical. The verb "are used" has no grammatical subject.) and how to make it into concrete in construction purpose. (unnatural - poor English)

As we could see above, There are fewer and easier steps in the concrete production than the processes of making cement. Further more this step does not work with heat.

There are five main stages in the process of producing cement. Firstly, First, limestone and clay are crushed into powder through a crusher. After that, a mixer will blend this powder.. compound. In the third stage, the powder it is passed to a rotating heater. which works with heat. In the next step, it goes into a grinder and become (wrong form.) cement when it comes out. Finally, the cement is packed in bags.

Referring to the Concrete production, this procedure begin (wrong form. ) with a combination of 15% cement, 10% water, 25% sand and 50% small stones. Then,these four elements are blent in a concrete mixer.

As we could see above, there are fewer and easier steps in the concrete production than the processes of making cement. Further more this step does not work with heat.