... and best quality To be equality and mutual benefit Carbon Steel Welding Neck FlangeOther Type: Slip-On, Welding Neck, Blind, ... ,EN,BS,JIS,AWWA,BS and GB ectMaterial: Stainless steel, Carbon steel and Alloy steel etc.Size: Up to 5000mmTreatment of Prevent Oxygenizement ... per year. The range of materials is covering carbon steel, alloy steel and stainless steel. We also deal in forgings and all kinds ...