Sunraj Industries can manufacture any existing Bundle to include dimensions, materials and performance. Sunraj Industries can build “U” tube bundles, straight tube “floating” tube sheet bundles, and also retube fixed tube sheet heat exchangers when the bundle is not removable. Sunraj Industries can supply U Bundles with any material. Most bundles tend to be built with copper tubes and steel tube sheets .Sunraj can offer a wide variety of materials, including: carbon steel, stainless steel, cupro-nickel, admiralty brass and many others.