... ASTM,ASME,DIN,JIS Certificate:API,ISO,CCS DIN 2527 BLIND FLANGE Types of flangeWeld neck flange, slip on flange ... , plate flange, blind flange, socket weld flange, threaded flange, lap joint flange, ... anti-rust varnish, anti-rust oil,hot-galvanized, etc.Packing Wooden case or as custmers’requirementApplicationspetroleum, gas, chemical, metallurgy, electric ...