As a leading supplier of ASTM B111 UNS C70600 seamless tubes in China, we provide premium copper-nickel (CuNi 90/10) alloy tubing ideal for marine and heat exchanger applications. These seamless tubes feature an outer diameter of 19.05 mm, a wall thickness of 1.75 mm, and a standard length of 10,000 mm, ensuring precise dimensions and consistent performance. The CuNi 90/10 composition offers excellent corrosion resistance, particularly in seawater and brine environments, along with superior thermal conductivity and mechanical strength. Our copper alloy tubes are widely used in condensers, desalination plants, and offshore engineering systems for reliable and efficient operation.