... to the upper part of 8-24ton normal excavators, e.g. Caterpillar, Hitachi, JCB, Volvo, Komatsu, Kobelco, Daewoo, Doosan, Sumitomo and so ... , 2 chains track, fit to 8-10ton normal excavators, e.g. JCB, Hitachi, Kobelco, Caterpiliar etc.with the following detail specifications ...