... 1.Copper Solder Ring Coupling 2.Standard:EN1254, BS864-2, ASME B16.22. 3.Samples are available. 4.100% Leakage ... all customers around the world. J9301 Copper Solder Ring Coupling In Pipe Fittings C=5/9(F-32 ... Copper2.Specification: 3/8", 1/2", 3/4", 1", 1 1/4", 1 1/2", 2", 2 1/2 ... guarantees product quality,low cost and timely supply.(4)Strict quality test systems:Whole process monitoring from material ...