7 Machines for the production of hollow bodies, especially bottles made of thermoplastic material by blowing under usage of a pressurized fluid, especially air; machines for the production of coating on a container or a preform for container; [ machines for applying labels on bottles; machines for applying covering films onto bottles; machines for vacuum coating of bottles or preforms; machines for spray coating of bottles or preforms, rotating device, machine parts, for transporting of the preforms meant to be blown during heating and during the blowing and cooling process, dividable blow molding cavities; ] machine parts, for blowing of plastic hollow bodies and especially plastic bottles; support drives, namely, active mandrels for moving the preforms, the dividable blow molding cavities and the completed hollow bodies; [ machines for the surface treatment of plastics, functional assembly groups made of the above mentioned goods for erecting of facilities for the production of container made of plastics; injection molding machines; parts for injection molding machines, namely, pressure switches and sensors for monitoring, controlling, and switching hydraulic or pneumatic systems sold as an integral component of injection molding machines; control devices, namely, pneumatic controls for injection molding machines; ] parts of machines, namely, pressure switches and sensors for monitoring, controlling, and switching hydraulic or pneumatic systems sold as an integral component of machines; machinable transport and conveying belts for the transport and the guidance of container and plastic preforms; blow molding machines, namely, which are equipped with a sterilization unit, especially which are equipped with a sterilization unit for preforms or half manufactured product, for the production of hollow bodies, green body, container and bottles for the packaging of food, liquids, beverages and pharmaceutical products, products for the personal hygiene and beauty care, perfume products, cleaning agents, cosmetic care products and chemical products; pressure metering devices, namely, pressure regulators being parts of machines [ ; bearing ring for bearings for machines, namely, injection molding machines ]