Acoustic insulating materials; Acoustical insulation for buildings; Acoustical tiles; Adhesive tape for industrial and commercial use; Architectural acoustic products, namely, sound absorbers and diffusers; Architectural acoustic products, namely, sound absorbers and diffusers in the form of decorative display panels composed primarily of non-metal materials which function to control sound; Heat and acoustical composite insulating shield for automobiles and machinery; Slag wool for use as a b...