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Plastic Blind Ditch for Drainage of Tunnels Featured Image
  • Plastic Blind Ditch for Drainage of Tunnels
  • Plastic Blind Ditch for Drainage of Tunnels
  • Plastic Blind Ditch for Drainage of Tunnels
  • Plastic Blind Ditch for Drainage of Tunnels
  • Plastic Blind Ditch for Drainage of Tunnels

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M M M M
D 7 1 1 1
T 4 4 4 4
P 3 6 7 6
T 82 82 85 82
F t 60 80 50 70
t 1 1 70 1
t 1 1 1 1
t 1 1 1 1
M S
M M M M M
D φ φ φ φ φ
T φ φ φ φ φ
P 4 7 1 1 2
T 82 82 84 85 85
F t 80 85 80 40 50
t 1 1 1 75 70
t 2 2 1 1 90
t 2 2 2 1 1

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