... B381,ASTM B348,ASME SB348,ASTMF136,AMS 4928SpecificationOD:200~400mm , >400~700mm , >700~900mm , >900~1300mmID:100~300mm,150~500mm, ... 300~700mm,400~900mmHight:35~120mm,40~160mm,50~180mm,70~250mmDifferent type ... .Slip On Flangeb.Welding Neck Flangec.Threaded Flange(Screwed Flange)d.Plain Flange e.Blind Flange f.Lap Joint Flangeg.Wocket Welding Flange3. ...