... ; 2. long working life; 3.Steering Valve; 4. Model 7-8 for Komatso; We are the reliable manufacturer of Hydraulic breaker ... , cylinder, front head, inner bush, front cover, seal kits, through bolt, side bolt, rod pin, stop pin, piston, seal housing, valve, accumulator ... , STANLEY, FURUKAWA, TOYO, TELEDYNE, SOCOMECT, NOAHTECH. KOMATSU EXCAVATOR MODEL 7-8 GENUINE CONTROL VALVE