casting carbon steel flange 1.Carbon steel 2.Casting and forging working 3.High quality , competitive price 4.Fine surfa Precision casting ... Plate Flange,Flat Flange,Slip-on Flange,Welding Neck Flange,Long Welding Neck Flange,Blind Flange,Stocket Welding,Thread Flange,Screwed Flange,Lap Joint Flange.4).Process ... and satisfied for customers special requirements. Precision casting carbon steel flanges