1.Copper Solder Ring Coupling 2.Standard:EN1254, BS864-2, ASME B16.22. 3.Samples are available. 4.100% ... (°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, 35, 42, 54, 673.Standard:EN1254, BS864-2, ASME B16 ... Co.,Ltd,which one of "China's Top 500 Enterprises."(2)15 years rich experience of OEM &ODM.If the ...