hygvl1035

Built-in Respiration Valve for tanker semitrailers 1.Connecting screwthread: M59*2 2.Opening pressure (breathing in):2-3Kpa Built-in Respiration Valve for tanker semitrailersConnecting screwthread: M59*2 When dumping the angle of 70,it will form a compelet steal system to prevent the oil from leaking.Opening pressure(breathing out ):6--8kpa,13-15KPa 17-19KPaOpening pressure (breathing in):2-3Kpa ...