A mano super – I. class
The reeds are made of dural Al sheet with hardness 160 HB. The channels are cut by electroerosive technology. The surface of the reed is ground. The sides of the reeds are grooved to create better wax adhesion to the reed and the headstock. The reeds are made individually from an 8 mm wide strip of sound steel with a strength of 2000 N/mm². The dimensions of the reeds are according to the old master accordions.