In this video i am going to show you the main difference we have in 1st Class, 2nd Class and 3rd Class of Brick.....Their water absorpt...

Difference Between 1st Class, 2nd Class and 3rd Class of Brick


In this video i am going to show you the main difference we have in 1st Class, 2nd Class and 3rd Class of Brick.....Their water absorption their strength and much more.

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