3 rows of 7 eyelets inside Ø 10 mm on one side. 3 rows of 7 eyelets inside Ø 10 mm on the other side.
TT360/56: 3600 x 560 mm
TT420/56: 4200 x 560 mm
TT420/69: 4200 x 690 mm
TT472/56: 4720 x 560 mm
TT472/71: 4720 x 710 mm
TT472/81: 4720 x 810 mm
TT476/71: 4760 x 710 mm
TT500/56: 5000 x 560 mm
TT500/69: 5000 x 690 mm
TT520/70: 5200 x 705 mm
TT556/56: 5560 x 560 mm
TT556/71: 5560 x 710 mm
TT580/69: 5800 x 690 mm