AMTECH offeres Forged Flanges in Slip on, Weldneck, Lap Joint, Blind, Plate Flange ,with MS, ASTM A105,SS 304 and SS 316 , Pressure : 150 lbs, 300 lbs ,Schedule : 20, 40, 80, 160. Size : ½ Inch to 12 Inch. Operation : Precision Dimension Control