... Solder Ring Coupling 2.Standard:EN1254, BS864-2, ASME B16.22. 3.Samples are available. 4.100% Leakage Test. Established in 1998 ... (°c) FAH(°F)1.Material: Red Copper2.Specification: 3/8", 1/2", 3/4", 1", 1 1/4", 1 1/2 ... ", 2", 2 1/2" 8, 10, 12, 15, 18, 22, 28 ... the order in large quantities,free charge of mould fees.(3)Steady raw material supply:we own Jintian Copper Bar ...