Figure 2: Wall sections (examples) of
large profiled plastic pipes (ND 2000)

a) Example 1 of a profile:
profile height h = 123 mm,
partial heights h1 = h2 = 58 mm,
profile width b1 = 66 mm,
profile distance b2 = 300 mm,
main wall thickness e4 = 7 mm
(dimensions according to [7])