Five containers of corrugated culverts, being exproted to Canada

1.Plate thickness: 1.5mm

2.Pipe diameter: 400mm

3.Corrugation: 68*13, 

4.Backfill height: 5m

5. Anti-corrosion treatment: Hot-dip galvanized with zinc layer thickness ≥84μm (610g/㎡)

6. Secondary anti-corrosion: Generally, asphalt coating or epoxy resin coating.

7. Service life: ≥100 years.

8. Standards: JTT 791-2010, GBT34567-2017.