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Atruck equipped with a tank body and with a system for pumping hot tar, road oil, or other bituminous material […]

An asphalt or tar compound used to provide a protective finish for a surface.

A semisolid mixture of complex hydrocarbons derived from coal or petroleum, as coal-tar pitch or asphalt; before application, usually dissolved

A key having a projecting blade or wing which engages with and actuates the bolt and tumblers of a lock.