Kraftube, Inc. Kraftube, Inc. specializes in multiple component assemblies. Capabilities include Furnace Brazing, Stamping and Welding. Kraftube has product lines that are UL listed with various products including Refrigeration Receivers, Accumulators, Valves, Vibration Absorbers and Mufflers. Industrial Classification: ISO 9001-2008 SIC Code 34 NACE Code DJ 28 EAC Code 17 Date of Initial Registration 02-28-03 Certified to Include ANSI/RAB Accreditation Mark Home Furnace Brazing Facilities in India News Releases Request Quote Contact Kraftube U.L. Products