... :1/2" to 160" 2) Standard: ISO,DIN, JIS 3) Certification: CE, ISO plate flat welding flangeOur company ... steel flange, alloy steel flangeSizeDN10 to DN2000Materialcarbon steel, stainless steel, alloy steelPressurePN0.1 to PN40StandardISO, DIN, ANSI/ASME, ... GB, JISPaintingblack, oil, yelloy, znic and so onTechnicsforged plate flat welding flange