For seal materials and related machining, 5 fixed groups exists:
- PU
- Rubber
- Plastic
- PTFE
- Metal
Available from version 5.5.9.5
And those groups are preloaded with the standard materials as presented below:

All the sub materials information can be changed, deleted (right click) or more added to suit the client reality. A user with level zero, cannot change or edit this list.
When a subproduct is deleted, the same can be undeleted, by choosing the option “show deleted” then using the right click over the deleted product, choosing the undelete option.
