JIS F 7378 Cast Iron 16K Screw-Down Check Angle Valves: Marine Cast Steel Screw Down Check Angle Valve uga bisa diarani Marine Cast Steel Angle SDNR Valve utawa SDNR Angle Valve. Cocog kanggo sistem pipa kanthi banyu seger, hawa & gas liyane, lenga lan uap kanthi suhu ora luwih saka 300 derajat celcius.