The diagrams define the stages and equipments used in making of cement and how cement is used to produce concrete.
Let's talk about procedure for making cement. First, limestone and clay are crushed by crusher and change it into powder form, then this powder is passed through mixer, now both products are mixed well and this mixture further passed into rotating heater, constant heat is supply to heater so that material into it acquire the heat properly. Now the mixture that is present in rotating heater is transfer to Grinder where we get the cement as a product. Furthermore, the cement is packed in bags.
Now coming to the concrete production, in this process Cement, water, sand and gravel (small stones) are used approximately 15%, 10%, 25% and 50% respectively. These mixtures are poured in the equipment known as concrete mixture for mixing well.
Overall, in making of cement, limestone and clay are the two main products that are passed by various equipments and for making the concrete production, cement is mixed with sand, water and Gravel. Gravel is also known as small stones is main material for concrete production. 
The diagrams define the stages and equipments  
used
 in making of  
cement
 and how  
cement
 is  
used
 to produce concrete. 
Let
's talk about procedure for making  
cement
.  
First
, limestone and clay  
are crushed
 by crusher and  
change
 it into powder form, then this powder  
is passed
 through mixer,  
now
 both products  
are mixed
 well and this  
mixture
  further
 passed into rotating heater, constant heat is supply to heater  
so
 that material into it acquire the heat  
properly
.  
Now
 the  
mixture
  that is
 present in rotating heater is transfer to Grinder where we  
get
 the  
cement
 as a product.  
Furthermore
, the  
cement
  is packed
 in bags. 
Now
 coming to the concrete production, in this process  
Cement
, water, sand and gravel ( 
small
 stones) are  
used
 approximately 15%, 10%, 25% and 50%  
respectively
. These mixtures  
are poured
 in the equipment known as concrete  
mixture
 for mixing well. 
Overall
, in making of  
cement
, limestone and clay are the two main products that  
are passed
 by various equipments and for making the concrete production,  
cement
  is mixed
 with sand, water and Gravel. Gravel is  
also
 known as  
small
 stones is main material for concrete production.