... Certificate:API,ISO,CCS DIN 2573 SLIP ON FLANGE Types of flangeWeld neck flange, slip on flange, plate flange, blind flange, socket ... of faceRF, FF, RJ, Tongue&Groove Facing, etc.Surface treatmentblack painting, anti-rust varnish, anti-rust oil,hot-galvanized, etc.Packing ... , CCS,and ISO9001:2000Productivity10000 ton per monthKeywords DIN 2573 SLIP ON FLANGE