excavator pipe 1. suitable for Hitachi, Komatsu, CAT, DOOSAN; 2. Double layer; 3. a range of specification. Hose assembly for Carterpilar, Komatsu, Hitachi, Sumitomo ... and low pressure hydraulic hose assembly for Carter, Komatsu, Hitachi, Sumitomo, Kato,Kobelco, Daewoo etc international brand excavator. Installation hose fittings for excavator