excavator pipe 1. suitable for Hitachi, Komatsu, CAT, DOOSAN; 2. Double layer; 3. a range of specification. Hose assembly for Carterpilar, Komatsu, Hitachi ... in engineering machinery of high, medium and low pressure hydraulic hose assembly for Carter, Komatsu, Hitachi, Sumitomo, Kato,Kobelco, Daewoo etc ...