Building Materials
Asbestos

All of these
Is a natural fibrous mineral substance
Contains iron oxide and alumina
Is composed of hydrous silicates of calcium and magnesium (CaSiO3, 3MgSiO3)

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Building Materials
Veneering means

Thin layer of superior wood glued to inferior wood
Carving out designs on timber planks
Thick layer of superior wood glued to inferior wood
Chemically treating timber planks

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