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Steel rung ladder for trapdoor plank
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- Made with steel tube rungs and struts – type S235 JR – having suitably designed cross-section and thickness.
- Assemblied by MIG-MAG welding, successively galvanised in a yellow electrolytic bath.
- Steel rung inserted, on each end, in the strut, through a hole, made in the strut, in order to prevent it from unintentionally disengaging.
- PVC moulded stoppers at the lower ends, in order to prevent it from accidentally slipping .
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Steel rung ladder for trapdoor plank cold-galvanized |
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Steel rung ladder for trapdoor plank hot-galvanized |
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