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Lost Wax Casting - as this process is time-consuming

Types of threads used in mechanical engineering

Intaglio printing - in the mysterious depths of printed forms

The best tank in the world -

Aluminum alloys: properties and processing of metals

Concord - aircraft of the future?

The battleship "Bismarck": the collapse of the giant

Propellants: varieties and composition

The resulting alcohol: methods and materials

Mineral glass and glassware

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How to protect against the evil eye?