Dongbull is composed of a resonance box, a headstock, a piano rod, a peg, a bridge, and strings. sound box Flat and rectangular, it is similar to the piano case of Arcan Dombra, the smaller one is 23 cm long, 15 cm wide and 5 cm thick; the larger one is 30 cm long, 20 cm wide and 7 cm thick, and the frame is made of four pieces. It is made of pear, apricot or walnut and other sheets by splicin...