specs for Semperit synthetic rubber seal for valves

Hi,

Did someone can provide us with the specs of Semperit synthetic rubber seal for dam valves/gates, old denominations of witch are :

"Joints Semperit Nr 2990; Ø 48 x 109 x 18 x 6300" and

"Joints Semperit Nr 2991; Ø 48 x 109 x 18 x 6300".

Please help

Regards

_________

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