Building Materials
A queen closer is a

Brick laid with its breadth parallel to the face or direction of wall
Brick with half the width at one end and full width at the other
Brick laid with its length parallel to the face or direction of wall
Brick having the same length and depth as the other bricks but half the breadth

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Building Materials
Plastic

All listed here
Finished products are rigid and stable at normal temperature
Is an organic substance
Consists of natural or synthetic binders

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