... .5,4.0,6.4,10.0,16.0, 3.DN:10---600mm Different Types of Casting or Forging Flanges Material ... ,2.5,4.0,6.4,10.0,16.0,DN:10---600mm1.Types: WN, SO, PL, BL, THRD, LAP-JOINT ... steel, stainless steel or other alloy steel according to ASTM, DIN,JIS, EN, ISO, GB standards.3.Weight: It ranges from ... of destination, DDU named place of destination steel weld neck flange