I SBR

Ventilating apparatus, in particular metal gas feed tubes and hold-down devices for gas-feed tubes in the nature of metal clamps

Electric agitating equipment for agitating waste water in waste water plants, agitating machines for agitating waste water in waste water plants, agitating tools for connection to the aforesaid agitating equipment and agitating machines, in particular hyperboloid agitating bodies and propellers, submersible motors for the aforesaid agitating bodies, waste water and slurry pumps for machines, circulating pumps for machines; lifting apparatus and cranes

Ventilating apparatus, in particular gas-feed tubes, air distribution apparatus for connecting gas-feed tubes, and hold-down devices for gas-feed tubes sold as a unit; ventilating apparatus, in particular air distribution apparatus for connecting gas-feed tubes for aerating waste water in waste water plants, water purifying apparatus, equipment and apparatus for waste water purifying and clarifying installations, waste water purifying and clarifying installations, and installations for mixing and aerating waste water and residual sludge; installations for conducting biological waste water purification process