... EU STANDARD 90 Degree Copper Elbow Fittings90 Degree Copper Elbow Fittings with ASTM B88,EU,America Standard Material: 99.99% copper ASTM,B88,EU STANDARD ... 90 Degree Copper Elbow Fittings Material: 99.99% copper National standard ... and also the ASME/ANSI B 16.22 standard. ASTM,B88,EU STANDARD 90 Degree Copper Elbow Fittings