The following diameters are standard :
Diameter inside
:
252 - 280 - 300 - 303 - 356 - 400 - 404 -406
410 - 425 - 450 - 460 - 465 - 500 - 502 - 506
508 - 550 - 605 - 625 - 635 - 720 mm
Thickness
:
from 3 mm to 45 mm
Length
:
from 25 mm to 1650 mm
Special measures are also available.
