Welding neck flangeMaterial: Carbon steel, Alloy steel, Stainless steelSize: DN15--DN600Nominal pressure: 150#-2500#, 5K-30K, 6BAR-40BARStandard: ASME, JIS, DIN, Sealing surface: RF. FFSurface treatment: Transparent oil, rust-proof black oil.Price: Very competitivePacking: Wooden cases or as customer's requirementSpecial design available according to requirement.Delivery Time : within 20 days after receiving the depositUse: Petroleum, Chemical, Metallurgy, Power, Gas, Shipbuilding, Construction. etc