QUIETCOOL

Exhaust ducts of metal for gas turbine power plants; exhaust-gas diffusors, other than parts of machines, of metal

Exhaust-gas diffusors being parts of machines for gas turbines; silencers for use in exhaust ducts of gas turbine power plants; exhaust ducts being parts of machines for gas turbines

Insulating materials, particularly high temperature insulating materials; insulating refractory materials; acoustical insulating materials