JIS F 7354 Cast Iron 5K Screw- Down Check Angle Valves: Marine Cast Steel Screw Down Check Angle Valve uga bisa kasebut minangka 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.