Back Up Ring
They are used as backups behind the O-ring. They are required to be of a harder material than the O-ring used.
You may find our standard production dimensions as NBR-90 in our lists.
They are used as backups behind the O-ring. They are required to be of a harder material than the O-ring used.
You may find our standard production dimensions as NBR-90 in our lists.
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