| PPR-AL-PPR foil-reinforced pipe (aluminum layer inside) |
| ·Composite pipes for hot water supply and heating. |
| ·Outer layer-polypropylene,inner layer-aluminum foil. |
| ·Inner layer-PPR (poprpropylene), |
| ·Pex(cross-linked polyethlene), |
| ·PERT(poyethylene of raised temperature resistance). |
| Item No. | Diameter(mm) | Averrage Diameterl(mm) | Thickness(mm) | Tube wall thickness(mm) | Thickness of inner Layer(mm) | Thickness of External Layer(mm) | |
| Min Dia.(mm) | Max Dia.(mm) | emin | emin | ||||
| 6103.01 | 16 | 16.0 | 16.3 | 2.75 | 3.10 | 0.80 | 1.60 |
| 6103.02 | 20 | 20.0 | 20.3 | 3.00 | 3.40 | 0.90 | 1.70 |
| 6103.03 | 25 | 25.0 | 25.3 | 3.25 | 3.65 | 1.00 | 1.80 |
| 6103.04 | 32 | 32.0 | 32.3 | 4.00 | 4.50 | 1.10 | 2.10 |
| 6103.05 | 40 | 40.0 | 40.4 | 5.00 | 5.60 | 1.50 | 2.60 |
| 6103.06 | 50 | 50.0 | 50.5 | 5.50 | 6.10 | 1.80 | 3.00 |
| 6103.07 | 63 | 63.0 | 63.6 | 7.00 | 7.80 | 2.40 | 3.80 |