| Product Name | Ductile iron pipe |
| Grade | K9, K10, K11, K12，K9, K8, C25, C30, C40, etc. |
| Standard | ISO2531, EN545, EN598, etc |
| Surface | External bitumen coating, or as required. |
| Internal coating | a). Portland cement mortar lining
b). Sulphate Resistant cement mortar lining
c). High-Aluminum cement mortar lining
d). Fusion bonded epoxy coating
e). Liquid epoxy painting
f). Black bitumen painting |
| External coating | a). zinc+bitumen(70microns) painting
b). Fusion bonded epoxy coating
c). Zinc-aluminum alloy +liquid epoxy painting |
| Quality Control | 100% inspection + professional Lab test |