A brush, in particular for household or industrial applications, has a bristle carrier plate made of plastic, a multitude of bristle bundles, which are attached in the bristle carrier plate, and at least one reinforcement plate, which is likewise made of plastic and is attached to the bristle carrier plate. The net is a high-quality synthetic double-layer net with reinforced borders encased in fabric-sealed edges, and a plurality of steel grommets around the edges of the safety net. The guidance structure includes one canal-like transfer line leading at least to the closure aggregate. A drive unit is disabled such that a main pump of the hydraulic control system discontinues providing hydraulic pressure to the hydraulic control system. As a result, the shelf mount tabs are locked into engagement within the perforations and the trough is mounted to the shelf as the trough attempts to spring back to its original shape. A semiconductor device having a TFT showing sufficient and stable characteristics may be obtained by increasing the ratio of the dopant amount in the doping gas and decreasing the ambient atmosphere components and hydrogen to be simultaneously added with the impurity ions at the time of doping.