دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a metallic button, usually cylindrical in shape, normally fastened to a wire rope by swaging, but sometimes by brazing.

ferrule metal junction.

n: a spring-actuated metal band or ring (ferrule) used to expand a liner patch when making casing repairs. See liner patch.

n: A kind of metal liner actuated by spring .