KTM Since 2012, KTM has been the largest motorcycle manufacturer in Europe for four consecutive years. Globally, the company is among the leading off-road motorcycle manufacturers. In 2016, KTM sold 203,423 motor vehicles worldwide. In 1934, an Austrian engineer Johann (Hans) Trunkenpolz set up a fitter's and car repair shop in Mattighofen. In 1937, he started selling DKW motorcycles, and Opel cars the following year. His shop was known as "Kraftfahrzeug Trunkenpolz Mattighofen", but the name was unregistered. During the Second World War, his wife took care of the business which was thriving mainly on account of diesel engine repairs. After
Rolling (metalworking) Rolling (metalworking) In metalworking, rolling is a metal forming process in which metal stock is passed through one or more pairs of rolls to reduce the thickness and to make the thickness uniform. The concept is similar to the rolling of dough. Rolling is classified according to the temperature of the metal rolled. If the temperature of the metal is above its recrystallization temperature, then the process is known as hot rolling. If the temperature of the metal is below its recrystallization temperature, the process is known as cold rolling. In terms of usage, hot rolling processes more tonnage than