Injection moulding machines; injection systems for die casting machines; mechanical presses; presses for industrial purposes; injection presses; mechanical presses for metalworking; hydraulic presses for metalworking; machines and machine tools for treatment of materials and for manufacturing; machines for the production and processing of materials; metal production machines; industrial pneumatic tools; mechanical tools; pistons for machines; support pins and plunger tips; cooling jackets or bushes for machines.