GBT 466 Cast Steel Gate Valves Marine cast steel gate valve is used on the pipe system for sea water, fresh water,lubrication oil.
GBT 465 Cast Iron Gate Valves Marine cast iron gate valve is used on the pipe system for fuel oil, fresh water, lubrication oil.
DIN Cast Iron Gate Valves (DIN3204 F4 F5) DIN CAST IRON GATE VALVE DIN 3204 F4/F5