BS 4482:2005

Diameter - A measurement across a circle passing through the middle

Steel - An alloy made predominately of Iron combined with <2% carbon

Specification - A description of a product with the details of its attributes.

Composition - A way in which something is made up.

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

Performance - When someone is presenting a form of entertainment, also how well someone is doing within a role.

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