Sludge filters; sand filters; filtering machines; screening machines; filters and filtering screens as parts of machines; filtering machines, namely, sifters, rakes (screens) as machines and as machine parts; sludge treatment machines; screens as a part of machines; sifting installations; sifters as machines and as machine parts; separators (machines); screw separators; machines for separating solids from liquids; machines for separating solids from sludges; waste material removal machines; machines tools for removing waste material; electric washing machines for industrial purposes; pressing machines; screw compactors; machines for dehydrating sludge; waste compacting machines; screw separating/compacting machines and devices for sewage and liquids/solids; scrapers as part of machines; sludge scrapers (machines); machines for thickening; machines for thickening sludge; screw thickener; thickener for wastewater treatment; machines for crushing waste; shredders [machines] for industrial use; waste disposers; mixing machines; mixers; screw mixers; polyelectrolyte milk preparation systems; agitators for anaerobic digesters; pumps; sludge pumps; rotary lobe pump; rotary pumps; machines for processing sludge; machines for processing waste material.

Machines and installations for the mechanical purification of waste water; waste water treatment apparatus; filter installations; water filtering apparatus; filters being parts for filtering installation; biological contactor for treatment of water; biological reactors for clarifying water; sewage treatment plants; purification installations for sewage; water purifying apparatus and machine; apparatus, machines and installations for mechanical, chemical and/or biological water purification and water treatment; installations for biological waste water treatment; water purification, sedimentation and filtration apparatus for clarification, thickening and filtration of water, waste water and industrial water; system for biological waste water treatment; equipment for sewage system; machine for aerating liquids; machines for drying sludge; machines for drying waste.

Braided and woven packing, and spiral wound gaskets