Pipes used for drinking water:
- according to German specifications DIN 8062-8061
- according to Egyptian specifications ES. 848-2001
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| Pipes used for sanitation: |
- according to German specifications DIN 19531
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19534 PART 1
19534 PART 2
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- according to Egyptian specifications ES. 1717
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Pipes used for sanitation and ventilation:
- according to British specifications
sanitation and ventilation B.S - 4515
ground sanitation B.S - 4660
sewerage B.S - 5481
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