marine goble valve JIS standard cast iron or cast steel DN50-DN500 Marine globe vallve for ship building 1.JIS.DIN.APL.ANSI.GB standard 2.BV.ABS,CCS.XQC,DNV,ISO9001 3.materials:cast iron,cast steel,4.Pressure :0.5Mpa -6.0Mpa. DN: 15mm-1200mm5.Inspection: JIS7400 Marine globe valve