BS 5163-1:2004

Copper - A metal element with a chemical formula of CU. A excellent conductor of electricity and heat.

water - A chemical substance. Chemical formula H2O.

iron - An electrical deviced used for removing creases from fabrics

iron - A chemical element (FE). The most common element on earth

Key - A physical or virtual device or code used for opening something

Size - is the measurement of how big an object is in space.

Dimensions - The shapes and angles of something or a situation.

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