ASTM B122 Copper Nickel Plate Flange, RTJ Flange Manufacturer and Supplier – Materials Copper Nickel Flanges Copper Nickel 90/10 Flanges Copper Nickel 70/30 Flanges Copper Nickel Forged Fittings Copper Nickel 90/10 Forged Fittings Copper Nickel 70/30 Forged Fittings Copper Nickel Pipe Fittings Copper Nickel 90/10 Pipe Fittings Copper Nickel 70/30 Pipe Fittings