Mica Manufacturing Co. Pvt. Ltd manufactures Mica Acoustic Diaphragm for Loudspeakers. Mica Manufacturing Co. Pvt. Ltd is an ISO 9002: 1994 accredited company. The Mica Acoustic Diaphragm for Loudspeakers has a favourable sharpness of resonance curve and is used in numerous loudspeakers including cones, coupling cones, skin for flat-shaped loudspeakers and voice coil bobbins.