High‑grade 6063 aluminum frame: Light‑weight, high‑strength, corrosion‑resistant for long‑term service.
Multiple‑size options: 3.7m / 4.7m / 5.7m total‑length variants to meet different height‑operation demands.
Precise working length: Stable usable working height, safe for overhead installation & maintenance work.
Wide inner frame width (320mm): Spacious standing space, improves standing stability and comfort.
Multi‑hinge foldable desig
| Product Name | Star Rating | Model | Item No. | Total Length | Max. Working Length | Clear Inner Frame Width | Frame Material |
| Ladder | FOUR Stars | HALL01-0370 | 311700101000 | 3700 ± 50mm | 3460 ± 50mm | 320 ± 10mm | Aluminum 6063 |
| FOUR Stars | HALL01-0470 | 311700201000 | 4700±50mm | 4460±50mm | 320±10mm | Aluminum 6063 | |
| FOUR Stars | HALL01-0570 | 311700301000 | 5700±50mm | 5560±50mm | 320±10mm | Aluminum 6063 |
