Installations for the treatment of gases; installations for the desulfurization of gases; installations for the purification of gases; installations for the purification of waste gases; installations for the purification of biogases; installations for the purification of waste water
Environmental Control ApparatusBuilding construction; repair; installation services; installation of gas purification installations; installation of water purification installations
Building Construction and RepairTreatment of natural gases; treatment of hazardous gases; treatment of waste gases; biological desulfurization; purification of gases; purification of waste gases; purification of biogases; information, advice and consultancy services relating to the treatment and purification of gases; water treatment and purification
Treatment of Materials