|DN##PIPE_SIZE##MILLIMETERS|L##LENGTH##MILLIMETERS
  15 x 15 |15|15
  15 x 20 |15|20
  15 x 25 |15|25
  15 x 30 |15|30
  15 x 40 |15|40
  15 x 50 |15|50
  15 x 100 |15|100
  20 x 15 |20|15
  20 x 20 |20|20
  20 x 25 |20|25
  20 x 30 |20|30
  20 x 40 |20|40
  20 x 50 |20|50
  20 x 100 |20|100
  25 x 15 |25|15
  25 x 20 |25|20
  25 x 25 |25|25
  25 x 30 |25|30
  25 x 40 |25|40
  25 x 50 |25|50
