Home PFEIFER Wire Rope & Lifting Technology is a specialist for replacement ropes of european cranes in America. Service of pouch socket replacement All sockets for Liebherr, Terex Demag, Tadano and Grove PFEIFER Wire Rope & Lifting Technology is a specialist for replacement ropes of european cranes in America. Service of pouch socket replacement All sockets for Liebherr, Terex Demag, Tadano and Grove GMK cranes nationwide and beyond. Ropes for tower cranes, port cranes, overhead cranes, foundation machines, etc.