Example of the conventional value:
1. A seal with an inner diameter of 180 mm and outer diameter of 210 mm made of a rubber of 2 group: M 180×210-2 GOST 22704-77
2. Pressing ring with an inner diameter of 180 mm and outer diameter of 210 mm made of a rubber of 2 group: KN 180×210-2 GOST 22704-77
3. Mounting ring with an inner diameter of 180 mm and outer diameter of 210 mm made of a rubber of 2 group: КО 180×210-2 GOST 22704-77
D – corresponds to the diameter of a cylinder being sealed,
d – corresponds to the diameter of a rod being sealed.

Note:
1.The assortment is to be confirmed when ordering.
2. If the press molds are available, the manufacture of the other gland typical sizes, not indicated in the table, is possible.
