... ,CCS.XQC,DNV,ISO9001 3.materials:cast iron,cast steel, Marine Globe Valve 1.JIS.DIN.APL.ANSI.GB standard2.BV ... .5Mpa -6.0Mpa. DN: 15mm-1200mm We specialize in producing marine valve and air vent (pipe) heads according to JIS, DIN ... , butterfly valve , quick-closing valve , air vent head and other marine accessories, The main materials are cast iron . ductile iron . Cast ...