4332842 4363324 EX550LCH EX600H EX600LCH and With 6-12 months warranty，Any quality problem will send free parts to repair. And this model Control Valve used for excavator hitachi

4332842 4363324 EX550 EX550H EX550LC and With 6-12 months warranty，Any quality problem will send free parts to repair. And this model Control Valve used for excavator hitachi