AM

Apparatus for air and gas conveyance and compression, namely, positive displacement blowers, rotary blowers, helical screw blowers, centrifugal blowers, high speed blowers, and regenerative blowers, densifiers in the nature of mechanical fan and centrifugal fan condensers, reciprocating, rotary screw and centrifugal compressors, turbocompressors, rotary compressors, rotary piston blowers for pressure and vacuum, rotary lobe pumps; densifiers in the nature of mechanical fan and centrifugal fan condensers and reciprocating, rotary screw and centrifugal compressors for overland gas transport pipelines

Regulating parts for overland gas transport pipelines, namely, barrier devices, and valves; refrigerating and heating devices for overland gas transport pipelines in the nature of gas coolers and heater cores, gas coolers in the nature of gas chillers for refrigeration systems

Construction of pipelines and waste water treatment plants; laying, construction and repair of gas transport pipelines laid overland and undersea