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How innocent people 'of no security interest' are mere keystrokes away in UK's spy databases

madick

"Slag can be used with cement as a component of concrete."

In the concrete industry, the stuff is generally known as ground granulated blast furnace slag - GGBFS or GGFS - sometimes abbreviated to blast furnace slag - BFS. This distinguishes it from other types of industrial waste products which may also be termed as "slag".

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