"Tretter" markasına ait modeller;
Standard ball bushing with steel cage; wipers integrated on both sides
NB02-020

Tretter
Standard ball bushing with steel cage; wipers integrated on both sides
Spring-loaded ball transfer unit with collar
FG10-015

Tretter
Spring-loaded ball transfer unit with collar
Fk90-530

Tretter
Nb02-008

Tretter