Based on the provided source material, there is no information regarding a city named Sebo in Indonesia. The term SEBO refers to a brand of vacuum cleaners manufactured by Stein & Co GmbH.
The company is based in the German town of Velbert and produces various models of upright and cylinder vacuum cleaners for both domestic and commercial applications. The name SEBO is an acronym for SEmigewerbliche BOdenpflege, which translates from German to semi-commercial floor care.