Designed for use in the underground for electrical isolation of the suspension unit from the contact rail in tunnels and on the above-ground sites of the underground.
Conditional designation of the gasket PPI-2 consists of the designation of the type of gasket and the designation of these technical specifications.
An example of conventional designation of gasket PPI-2:
PPI-2, TU 2530-11-75093226-2014.
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