JIS F 7409 16K SCS16 Stainless Steel Screw Down Check Globe ValvesMarine Screw Down Check Globe Valve uga disebut marine SDNR Valve, marine stop check valve, marine globe non reuturn valve, marine globe check valve..etc.Fungsi: mbukak / nutup tutup sistem pipe lan nyegah flowback medium.Design Standard: JIS F7409-1996