HI TecMetal Group, Inc. (HTG) is a metal service company that has been in business since 1943 specializing in thermal treatme ... nt and metal joining. HTG has design and engineering capacities including an R&D lab so we can help take your product from idea to production. Our six locations throughout NE Ohio offer a vast array of brazing, welding, and heat treating capabilities. Certifications vary by location but include ISO 9001:2008 and NADCAP. HTG is considered an expert in brazed heat exchangers and we proudly serve many industries including, but not limited to: *Aerospace *Automotive *Food service *Medical device *Power generation *Tooling *Medical Contact us today to see how we can help you with your metal service needs or visit us at www.htg.cc read more