SS300EL Double Pipe Monitor Standard Design Parameters SS300DEL/F China Deyuan Marine Fitting ... fighting system,marine fire pump,foam fire monitor,fire monitor,electric fire monitor,CO2 Fire-extinguishing system,fire extinguishing system,Pls ... : Stainless Steel/Anti-corrosion aluminum alloy/Copper alloy Sealing: NBR Pipe: Hard aluminum alloy Flange: Stainless Steel/Anti-corrosion aluminum alloy ...