Building Materials
Advantage of a clamp compared to a kiln for burning bricks is that

It gives more output of first class bricks
It has less initial cost
It is suitable when bricks are required in large numbers
It takes less time for burning

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Building Materials
The plywood

Can be spilt in the plane of the panel
Has greater impact resistance to blows than ordinary wood
Has good strength along the panel only
Cannot be bent more easily than ordinary wood of same thickness

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