1.Copper Solder Ring Coupling 2.Standard:EN1254, BS864-2, ASME B16.22. 3.Samples are available. 4.100% Leakage Test. Established in ... " 8, 10, 12, 15, 18, 22, 28, 35, 42, 54, 673.Standard:EN1254, BS864-2, ASME B16.22GB/T11618-1999BS864/EN1254ASME/ANSI ...