Zitat:
Zitat von adham
...The friction level is checked at the Racket Control room at ITTF events. For other events you have to rely on the Authorization list.
Adham
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Hi Adham
could you give us some details,
how the friction level is checked at the Racket Control room at ITTF events?
I mean, what kind of device and so on.
You know, as an umpire I can't measure anything just with the Authorization list.