E312 Relief Valve for Cat Excavator Guangzhou Sailfish Machinery&Equipment Co., Ltd. Base Info Model NO.:E312Type:Relief ValveApplication:ExcavatorCertification:ISO9001: 2000Condition:NewUsage:OilFuel:DieselTrademark:SFTransport Package:Carton BoxOrigin:China Description Pre:Monitor Secd-5I-12 135-215-330 for Sany Excavators Next:Sk75 Unloading Valve for Kobelco Excavator