... 7-8 for Komatso; We are the reliable manufacturer of Hydraulic breaker and spare parts, We can supply SPARE PART FOR ... EXCAVATOR, HYDRAULIC BREAKER/ROCK HAMMER back head, cylinder, front head, inner bush ... , TOYO, TELEDYNE, SOCOMECT, NOAHTECH. KOMATSU EXCAVATOR MODEL 7-8 GENUINE CONTROL VALVE