42 Technical consultation in the field of processing of materials; product development engineering; engineering,[ computer consultation, ] research and consulting in the field of mechanical engineering; [ material testing; ] technical planning of projects, material testing, transfer of technology, design and testing of technical products for others; all in the fields of automotive manufacture, automotive marketing, processing machines, fastening techniques for wood and other non-metallic materials, mountings, fabrication machines, plastics, semi-manufactured products, structural engineering, wooden construction, furniture construction, interior design, interior construction, [ welding technology, ] and ultrasonic welding technology