| Item No. | Raw Material | Inner Micro duct | Tube Bundles | Visual Appearance | Crush | Impact | Min. Bend Radius |
| Material | Melt Flow Index | Density | Environmental stress crack resist (F50) | Outer Diameter | Wall Thickness | Inner Diameter Clearance | Ovality | Pressurization | Kink | Tensile Strength | Heat Reversion | Co-efficient of Friction | Color and printing | Outer diameter | Wall thickness | Pressurization | Tensile strength | Color and printing |
| DW-TB0535-DB1 | 100% virgin HDPE | ≤ 0.40 g/10min | 0.940～0.958 g/cm3 | Min. 96h | 5.0mm ± 0.1mm | 0.75mm ± 0.10mm | A 3.0mm steel ball can be blown freely through the duct. | ≤ 5% | No damage and leakage | ≤ 50mm | ≥ 185N | ≤ 3% | ≤ 0.1 | As per customer specification | 10.0mm (± 0.3mm) | 2.50mm ± 0.20mm | No damage and leakage | ≥ 650N | Orange or as per customer specification | Ribbed inside & smooth outside surface, free from blisters, shrink hole, flaking, scratches & roughness. | No residual deformation > 15% of inner and outer diameter, shall pass inner diameter clearance test. |
| DW-TB0535-DB2 | 100% virgin HDPE | ≤ 0.40 g/10min | 0.940～0.958 g/cm3 | Min. 96h | 5.0mm ± 0.1mm | 0.75mm ± 0.10mm | A 3.0mm steel ball can be blown freely through the duct. | ≤ 5% | No damage and leakage | ≤ 50mm | ≥ 185N | ≤ 3% | ≤ 0.1 | As per customer specification | 15.0mm*10.0mm (± 0.3mm) | 2.50mm ± 0.20mm | No damage and leakage | ≥ 1000N | Orange or as per customer specification |
| DW-TB0535-DB4 | 100% virgin HDPE | ≤ 0.40 g/10min | 0.940～0.958 g/cm3 | Min. 96h | 5.0mm ± 0.1mm | 0.75mm ± 0.10mm | A 3.0mm steel ball can be blown freely through the duct. | ≤ 5% | No damage and leakage | ≤ 50mm | ≥ 185N | ≤ 3% | ≤ 0.1 | As per customer specification | 18.9mm (± 0.7mm) | 3.40mm ± 0.20mm | No damage and leakage | ≥ 1950N | Orange or as per customer specification |
| DW-TB0535-DB7 | 100% virgin HDPE | ≤ 0.40 g/10min | 0.940～0.958 g/cm3 | Min. 96h | 5.0mm ± 0.1mm | 0.75mm ± 0.10mm | A 3.0mm steel ball can be blown freely through the duct. | ≤ 5% | No damage and leakage | ≤ 50mm | ≥ 185N | ≤ 3% | ≤ 0.1 | As per customer specification | 21.8mm (± 1.1mm) | 3.40mm ± 0.20mm | No damage and leakage | ≥ 2500N | Orange or as per customer specification |
| DW-TB0535-DB12 | 100% virgin HDPE | ≤ 0.40 g/10min | 0.940～0.958 g/cm3 | Min. 96h | 5.0mm ± 0.1mm | 0.75mm ± 0.10mm | A 3.0mm steel ball can be blown freely through the duct. | ≤ 5% | No damage and leakage | ≤ 50mm | ≥ 185N | ≤ 3% | ≤ 0.1 | As per customer specification | 21.8mm (± 1.1mm) | 3.40mm ± 0.20mm | No damage and leakage | ≥ 3550N | Orange or as per customer specification |
| DW-TB0535-DB19 | 100% virgin HDPE | ≤ 0.40 g/10min | 0.940～0.958 g/cm3 | Min. 96h | 5.0mm ± 0.1mm | 0.75mm ± 0.10mm | A 3.0mm steel ball can be blown freely through the duct. | ≤ 5% | No damage and leakage | ≤ 50mm | ≥ 185N | ≤ 3% | ≤ 0.1 | As per customer specification | 31.8mm (± 1.1mm) | 3.40mm ± 0.20mm | No damage and leakage | ≥ 4700N | Orange or as per customer specification |
| DW-TB0535-DI1 | 100% virgin HDPE | ≤ 0.40 g/10min | 0.940～0.958 g/cm3 | Min. 96h | 5.0mm ± 0.1mm | 0.75mm ± 0.10mm | A 3.0mm steel ball can be blown freely through the duct. | ≤ 5% | No damage and leakage | ≤ 50mm | ≥ 185N | ≤ 3% | ≤ 0.1 | As per customer specification | 8.0mm (± 0.2mm) | 1.50mm ± 0.20mm | No damage and leakage | ≥ 380N | Orange or as per customer specification |
| DW-TB0535-DI2 | 100% virgin HDPE | ≤ 0.40 g/10min | 0.940～0.958 g/cm3 | Min. 96h | 5.0mm ± 0.1mm | 0.75mm ± 0.10mm | A 3.0mm steel ball can be blown freely through the duct. | ≤ 5% | No damage and leakage | ≤ 50mm | ≥ 185N | ≤ 3% | ≤ 0.1 | As per customer specification | 5.0mm ± 0.1mm | 0.75mm ± 0.10mm | No damage and leakage | ≥ 640N | Orange or as per customer specification |
| DW-TB0535-DI4 | 100% virgin HDPE | ≤ 0.40 g/10min | 0.940～0.958 g/cm3 | Min. 96h | 5.0mm ± 0.1mm | 0.75mm ± 0.10mm | A 3.0mm steel ball can be blown freely through the duct. | ≤ 5% | No damage and leakage | ≤ 50mm | ≥ 185N | ≤ 3% | ≤ 0.1 | As per customer specification | 15.0mm ± 0.7mm | 1.70mm ± 0.20mm | No damage and leakage | ≥ 1050N | Orange or as per customer specification |
| DW-TB0535-DI7 | 100% virgin HDPE | ≤ 0.40 g/10min | 0.940～0.958 g/cm3 | Min. 96h | 5.0mm ± 0.1mm | 0.75mm ± 0.10mm | A 3.0mm steel ball can be blown freely through the duct. | ≤ 5% | No damage and leakage | ≤ 50mm | ≥ 185N | ≤ 3% | ≤ 0.1 | As per customer specification | 18.4mm ± 0.7mm | 1.70mm ± 0.20mm | No damage and leakage | ≥ 1500N | Orange or as per customer specification |
| DW-TB0535-DI12 | 100% virgin HDPE | ≤ 0.40 g/10min | 0.940～0.958 g/cm3 | Min. 96h | 5.0mm ± 0.1mm | 0.75mm ± 0.10mm | A 3.0mm steel ball can be blown freely through the duct. | ≤ 5% | No damage and leakage | ≤ 50mm | ≥ 185N | ≤ 3% | ≤ 0.1 | As per customer specification | 23.7mm ± 1.1mm | 1.70mm ± 0.20mm | No damage and leakage | ≥ 2200N | Orange or as per customer specification |
| DW-TB0535-DI19 | 100% virgin HDPE | ≤ 0.40 g/10min | 0.940～0.958 g/cm3 | Min. 96h | 5.0mm ± 0.1mm | 0.75mm ± 0.10mm | A 3.0mm steel ball can be blown freely through the duct. | ≤ 5% | No damage and leakage | ≤ 50mm | ≥ 185N | ≤ 3% | ≤ 0.1 | As per customer specification | 23.7mm (± 1.1mm) | 1.70mm ± 0.20mm | No damage and leakage | ≥ 2200N | Orange or as per customer specification |
| DW-TB0535-DI24 | 100% virgin HDPE | ≤ 0.40 g/10min | 0.940～0.958 g/cm3 | Min. 96h | 5.0mm ± 0.1mm | 0.75mm ± 0.10mm | A 3.0mm steel ball can be blown freely through the duct. | ≤ 5% | No damage and leakage | ≤ 50mm | ≥ 185N | ≤ 3% | ≤ 0.1 | As per customer specification | 33.4mm (± 1.1mm) | 1.70mm ± 0.20mm | No damage and leakage | ≥ 4200N | Orange or as per customer specification |
| DW-TB0735-2 | 100% virgin HDPE | ≤ 0.40 g/10min | 0.940～0.958 g/cm3 | Min. 96h | 5.0mm ± 0.1mm | 0.75mm ± 0.10mm | A 3.0mm steel ball can be blown freely through the duct. | ≤ 5% | No damage and leakage | ≤ 50mm | ≥ 185N | ≤ 3% | ≤ 0.1 | As per customer specification | 16.4mm * 9.4mm (± 0.3mm) | 1.20mm ± 0.20mm | No damage and leakage | ≥ 1020N | Orange or as per customer specification |
| DW-TB0735-4 | 100% virgin HDPE | ≤ 0.40 g/10min | 0.940～0.958 g/cm3 | Min. 96h | 7.0mm ± 0.1mm | 1.75mm ± 0.10mm | A 3.0mm steel ball can be blown freely through the duct. | ≤ 5% | No damage and leakage | ≤ 70mm | ≥ 520N | ≤ 3% | ≤ 0.1 | As per customer specification | 16.4mm * 9.4mm (± 0.3mm) | 1.20mm ± 0.20mm | No damage and leakage | ≥ 1750N | Orange or as per customer specification |
| DW-TB0735-7 | 100% virgin HDPE | ≤ 0.40 g/10min | 0.940～0.958 g/cm3 | Min. 96h | 7.0mm ± 0.1mm | 1.75mm ± 0.10mm | A 3.0mm steel ball can be blown freely through the duct. | ≤ 5% | No damage and leakage | ≤ 70mm | ≥ 520N | ≤ 3% | ≤ 0.1 | As per customer specification | 23.4mm * 21.6mm (± 0.5mm) | 1.20mm ± 0.20mm | No damage and leakage | ≥ 2750N | Orange or as per customer specification |
| DW-TB0735-12 | 100% virgin HDPE | ≤ 0.40 g/10min | 0.940～0.958 g/cm3 | Min. 96h | 7.0mm ± 0.1mm | 1.75mm ± 0.10mm | A 3.0mm steel ball can be blown freely through the duct. | ≤ 5% | No damage and leakage | ≤ 70mm | ≥ 520N | ≤ 3% | ≤ 0.1 | As per customer specification | 30.4mm * 27.6mm (± 1.1mm) | 1.20mm ± 0.20mm | No damage and leakage | ≥ 4400N | Orange or as per customer specification |
| DW-TB0735-24 | 100% virgin HDPE | ≤ 0.40 g/10min | 0.940～0.958 g/cm3 | Min. 96h | 7.0mm ± 0.1mm | 1.75mm ± 0.10mm | A 3.0mm steel ball can be blown freely through the duct. | ≤ 5% | No damage and leakage | ≤ 70mm | ≥ 520N | ≤ 3% | ≤ 0.1 | As per customer specification | 44.2mm (± 1.5mm) | 1.20mm ± 0.20mm | No damage and leakage | ≥ 9000N | Orange or as per customer specification |
| DW-TB0805-4 | 100% virgin HDPE | ≤ 0.40 g/10min | 0.940～0.958 g/cm3 | Min. 96h | 7.0mm ± 0.1mm | 1.75mm ± 0.10mm | A 3.0mm steel ball can be blown freely through the duct. | ≤ 5% | No damage and leakage | ≤ 70mm | ≥ 520N | ≤ 3% | ≤ 0.1 | As per customer specification | 29.2mm (± 0.5mm) | 3.40mm ± 0.20mm | No damage and leakage | ≥ 3480N | Orange or as per customer specification |
| DW-TB1006-2 | 100% virgin HDPE | ≤ 0.40 g/10min | 0.940～0.958 g/cm3 | Min. 96h | 10.0mm ± 0.1mm | 2.00mm ± 0.10mm | A 3.0mm steel ball can be blown freely through the duct. | ≤ 5% | No damage and leakage | ≤ 100mm | ≥ 910N | ≤ 3% | ≤ 0.1 | As per customer specification | 22.4mm*12.4mm (± 0.3m) | 1.20mm ± 0.20mm | No damage and leakage | ≥ 1600N | Orange or as per customer specification |
| DW-TB1006-4 | 100% virgin HDPE | ≤ 0.40 g/10min | 0.940～0.958 g/cm3 | Min. 96h | 10.0mm ± 0.1mm | 2.00mm ± 0.10mm | A 3.0mm steel ball can be blown freely through the duct. | ≤ 5% | No damage and leakage | ≤ 100mm | ≥ 910N | ≤ 3% | ≤ 0.1 | As per customer specification | 22.4mm*22.4mm (± 0.5mm) | 1.20mm ± 0.20mm | No damage and leakage | ≥ 2750N | Orange or as per customer specification |
| DW-TB1006-7 | 100% virgin HDPE | ≤ 0.40 g/10min | 0.940～0.958 g/cm3 | Min. 96h | 10.0mm ± 0.1mm | 2.00mm ± 0.10mm | A 4.0mm steel ball can be blown freely through the duct. | ≤ 5% | No damage and leakage | ≤ 100mm | ≥ 910N | ≤ 3% | ≤ 0.1 | As per customer specification | 32.4mm*29.8mm (± 0.7mm) | 1.20mm ± 0.20mm | No damage and leakage | ≥ 4400N | Orange or as per customer specification |
| DW-TB1208-2 | 100% virgin HDPE | ≤ 0.40 g/10min | 0.940～0.958 g/cm3 | Min. 96h | 12.0mm ± 0.1mm | 2.00mm ± 0.10mm | A 6.0mm steel ball can be blown freely through the duct. | ≤ 5% | No damage and leakage | ≤ 120mm | ≥ 1200N | ≤ 3% | ≤ 0.1 | As per customer specification | 26.4mm*14.4mm (± 0.3mm) | 1.20mm ± 0.20mm | No damage and leakage | ≥ 1950N | Orange or as per customer specification |
| DW-TB1208-4 | 100% virgin HDPE | ≤ 0.40 g/10min | 0.940～0.958 g/cm3 | Min. 96h | 12.0mm ± 0.1mm | 2.00mm ± 0.10mm | A 6.0mm steel ball can be blown freely through the duct. | ≤ 5% | No damage and leakage | ≤ 120mm | ≥ 1200N | ≤ 3% | ≤ 0.1 | As per customer specification | 26.4mm*14.4mm (± 0.3mm) | 1.20mm ± 0.20mm | No damage and leakage | ≥ 3400N | Orange or as per customer specification |
| DW-TB1208-7 | 100% virgin HDPE | ≤ 0.40 g/10min | 0.940～0.958 g/cm3 | Min. 96h | 12.0mm ± 0.1mm | 2.00mm ± 0.10mm | A 6.0mm steel ball can be blown freely through the duct. | ≤ 5% | No damage and leakage | ≤ 120mm | ≥ 1200N | ≤ 3% | ≤ 0.1 | As per customer specification | 38.4mm*35.2mm (± 1.1mm) | 1.20mm ± 0.20mm | No damage and leakage | ≥ 5400N | Orange or as per customer specification |
| DW-TB1210-DB1 | 100% virgin HDPE | ≤ 0.40 g/10min | 0.940～0.958 g/cm3 | Min. 96h | 12.0mm ± 0.1mm | 2.00mm ± 0.10mm | A 8.5mm steel ball can be blown freely through the duct. | ≤ 5% | No damage and leakage | ≤ 120mm | ≥ 620N | ≤ 3% | ≤ 0.1 | As per customer specification | 18.0mm ± 0.3mm | 3.00mm ± 0.20mm | No damage and leakage | ≥ 1650N | Orange or as per customer specification |
| DW-TB1210-DB2 | 100% virgin HDPE | ≤ 0.40 g/10min | 0.940～0.958 g/cm3 | Min. 96h | 12.0mm ± 0.1mm | 2.00mm ± 0.10mm | A 8.5mm steel ball can be blown freely through the duct. | ≤ 5% | No damage and leakage | ≤ 120mm | ≥ 620N | ≤ 3% | ≤ 0.1 | As per customer specification | 30.0mm * 18.0mm (± 0.5mm) | 3.00mm ± 0.20mm | No damage and leakage | ≥2680N | Orange or as per customer specification |
| DW-TB1210-DI1 | 100% virgin HDPE | ≤ 0.40 g/10min | 0.940～0.958 g/cm3 | Min. 96h | 12.0mm ± 0.1mm | 1.00mm ± 0.10mm | A 8.5mm steel ball can be blown freely through the duct. | ≤ 5% | No damage and leakage | ≤ 120mm | ≥ 620N | ≤ 3% | ≤ 0.1 | As per customer specification | 15.0mm ± 0.3mm | 1.50mm ± 0.20mm | No damage and leakage | ≥920N | Orange or as per customer specification |
| DW-TB1210-DI2 | 100% virgin HDPE | ≤ 0.40 g/10min | 0.940～0.958 g/cm3 | Min. 96h | 12.0mm ± 0.1mm | 1.00mm ± 0.10mm | A 8.5mm steel ball can be blown freely through the duct. | ≤ 5% | No damage and leakage | ≤ 120mm | ≥ 620N | ≤ 3% | ≤ 0.1 | As per customer specification | 27.0mm * 15.0mm (± 0.5mm) | 1.50mm ± 0.20mm | No damage and leakage | ≥1600N | Orange or as per customer specification |
| DW-TB1210-DI4 | 100% virgin HDPE | ≤ 0.40 g/10min | 0.940～0.958 g/cm3 | Min. 96h | 12.0mm ± 0.1mm | 1.00mm ± 0.10mm | A 8.5mm steel ball can be blown freely through the duct. | ≤ 5% | No damage and leakage | ≤ 120mm | ≥ 620N | ≤ 3% | ≤ 0.1 | As per customer specification | 32.4mm (± 1.1mm) | 1.70mm ± 0.20mm | No damage and leakage | ≥2850N | Orange or as per customer specification |
| DW-TB1210-DI7 | 100% virgin HDPE | ≤ 0.40 g/10min | 0.940～0.958 g/cm3 | Min. 96h | 12.0mm ± 0.1mm | 1.00mm ± 0.10mm | A 8.5mm steel ball can be blown freely through the duct. | ≤ 5% | No damage and leakage | ≤ 120mm | ≥ 620N | ≤ 3% | ≤ 0.1 | As per customer specification | 39.4mm (± 1.1mm) | 1.70mm ± 0.20mm | No damage and leakage | ≥4200N | Orange or as per customer specification |
| DW-TB1410-1 | 100% virgin HDPE | ≤ 0.40 g/10min | 0.940～0.958 g/cm3 | Min. 96h | 14.0mm ± 0.1mm | 2.00mm ± 0.10mm | A 8.5mm steel ball can be blown freely through the duct. | ≤ 5% | No damage and leakage | ≤ 140mm | ≥ 1350N | ≤ 3% | ≤ 0.1 | As per customer specification | 16.4mm ± 0.5mm | 1.20mm ± 0.20mm | No damage and leakage | ≥1400N | Orange or as per customer specification |
| DW-TB1410-2 | 100% virgin HDPE | ≤ 0.40 g/10min | 0.940～0.958 g/cm3 | Min. 96h | 14.0mm ± 0.1mm | 2.00mm ± 0.10mm | A 8.5mm steel ball can be blown freely through the duct. | ≤ 5% | No damage and leakage | ≤ 140mm | ≥ 1350N | ≤ 3% | ≤ 0.1 | As per customer specification | 30.4mm*16.4mm (± 0.5mm) | 1.20mm ± 0.20mm | No damage and leakage | ≥2250N | Orange or as per customer specification |
| DW-TB1410-3F | 100% virgin HDPE | ≤ 0.40 g/10min | 0.940～0.958 g/cm3 | Min. 96h | 14.0mm ± 0.1mm | 2.00mm ± 0.10mm | A 8.5mm steel ball can be blown freely through the duct. | ≤ 5% | No damage and leakage | ≤ 140mm | ≥ 1350N | ≤ 3% | ≤ 0.1 | As per customer specification | 44.4mm*16.4mm (± 0.5mm) | 1.20mm ± 0.20mm | No damage and leakage | ≥3000N | Orange or as per customer specification |
| DW-TB1410-4F | 100% virgin HDPE | ≤ 0.40 g/10min | 0.940～0.958 g/cm3 | Min. 96h | 14.0mm ± 0.1mm | 2.00mm ± 0.10mm | A 8.5mm steel ball can be blown freely through the duct. | ≤ 5% | No damage and leakage | ≤ 140mm | ≥ 1350N | ≤ 3% | ≤ 0.1 | As per customer specification | 58.4mm*16.4mm (± 0.5mm) | 1.20mm ± 0.20mm | No damage and leakage | ≥4200N | Orange or as per customer specification |
| DW-TB1410-4S | 100% virgin HDPE | ≤ 0.40 g/10min | 0.940～0.958 g/cm3 | Min. 96h | 14.0mm ± 0.1mm | 2.00mm ± 0.10mm | A 8.5mm steel ball can be blown freely through the duct. | ≤ 5% | No damage and leakage | ≤ 140mm | ≥ 1350N | ≤ 3% | ≤ 0.1 | As per customer specification | 40.6mm (± 1.1mm) | 3.40mm ± 0.20mm | No damage and leakage | ≥7200N | Orange or as per customer specification |
| DW-TB1410-4 | 100% virgin HDPE | ≤ 0.40 g/10min | 0.940～0.958 g/cm3 | Min. 96h | 14.0mm ± 0.1mm | 2.00mm ± 0.10mm | A 8.5mm steel ball can be blown freely through the duct. | ≤ 5% | No damage and leakage | ≤ 140mm | ≥ 1350N | ≤ 3% | ≤ 0.1 | As per customer specification | 30.4mm*30.4mm (± 0.5mm) | 1.20mm ± 0.20mm | No damage and leakage | ≥4000N | Orange or as per customer specification |
| DW-TB1410-5F | 100% virgin HDPE | ≤ 0.40 g/10min | 0.940～0.958 g/cm3 | Min. 96h | 14.0mm ± 0.1mm | 2.00mm ± 0.10mm | A 8.5mm steel ball can be blown freely through the duct. | ≤ 5% | No damage and leakage | ≤ 140mm | ≥ 1350N | ≤ 3% | ≤ 0.1 | As per customer specification | 44.4mm*28.6mm (± 1.1mm) | 1.20mm ± 0.20mm | No damage and leakage | ≥5000N | Orange or as per customer specification |
| DW-TB1410-6F | 100% virgin HDPE | ≤ 0.40 g/10min | 0.940～0.958 g/cm3 | Min. 96h | 14.0mm ± 0.1mm | 2.00mm ± 0.10mm | A 8.5mm steel ball can be blown freely through the duct. | ≤ 5% | No damage and leakage | ≤ 140mm | ≥ 1350N | ≤ 3% | ≤ 0.1 | As per customer specification | 44.4mm*30.4mm (± 1.1mm) | 1.20mm ± 0.20mm | No damage and leakage | ≥5850N | Orange or as per customer specification |
| DW-TB1410-7F | 100% virgin HDPE | ≤ 0.40 g/10min | 0.940～0.958 g/cm3 | Min. 96h | 14.0mm ± 0.1mm | 2.00mm ± 0.10mm | A 8.5mm steel ball can be blown freely through the duct. | ≤ 5% | No damage and leakage | ≤ 140mm | ≥ 1350N | ≤ 3% | ≤ 0.1 | As per customer specification | 44.4mm*30.4mm (± 1.1mm) | 1.20mm ± 0.20mm | No damage and leakage | ≥5850N | Orange or as per customer specification |
| DW-TB1612-4 | 100% virgin HDPE | ≤ 0.40 g/10min | 0.940～0.958 g/cm3 | Min. 96h | 16.0mm ± 0.15mm | 2.00mm ± 0.10mm | A 8.5mm steel ball can be blown freely through the duct. | ≤ 5% | No damage and leakage | ≤ 176mm | ≥ 1600N | ≤ 3% | ≤ 0.1 | As per customer specification | 34.4mm*34.4mm (± 1.1mm) | 1.20mm ± 0.20mm | No damage and leakage | ≥4600N | Orange or as per customer specification |
| DW-TB1612-7 | 100% virgin HDPE | ≤ 0.40 g/10min | 0.940～0.958 g/cm3 | Min. 96h | 16.0mm ± 0.15mm | 2.00mm ± 0.10mm | A 8.5mm steel ball can be blown freely through the duct. | ≤ 5% | No damage and leakage | ≤ 176mm | ≥ 1600N | ≤ 3% | ≤ 0.1 | As per customer specification | 50.4mm*46.2mm (± 1.1mm) |
With HDPE as the main material, it has good mechanical performance to provide the adequate protection for cable. Solid, permanent silicon lubricant layer of inner wall efficiently lowers the inner wall friction coefficient to benefit for the long-distance cable blowing. Silicon layer is co-extruded into the inner wall of piping, cable in the pipe can be repeatedly drawn off without being peeled off or broken away. 
Developed to be the best solution of direct burial modular-tubes family, featuring a non-metallic construction A bundle of micro-or mini-tubes (regular wall size) is surrounded by single thin HDPE sheath. The design makes the duct assemblies suitable for outdoor direct buried or other existing ducts or cable trays. The micro ducts are optimized for best cable blowing performance.
