Our superior quality copper components find applications in various industrial processes such as HVAC, refrigeration, fluid distribution, air pressure lines, and plumbing etc. Copper Tubing Sub-Assembly Each copper tubing sub-assembly is made to the highest quality standards. Our supplier is a large, well-established manufacturer, specializing in the fabrication of copper manifolds and copper fittings. All holes on the manifold are punched with collars to provide the highest brazing strength. All brazing is done with purged nitrogen and thoroughly cleaned to eliminate any contamination. All finished copper sub-assemblies are inspected with the Tri-Iinear Coordinates Measuring Instrument to ensure the highest dimensional accuracy. Each sub-assembly is pressurized to ensure there are no leaks.