ISO Standard Flame Retardant Firefighting Aluminum Folding Ladder

Comply with Q/JJ-12-2008 "hanging escape ladder" standard. Used for the rescue persons in distress.
Can be stored in the bag, easy to carry. Complete shape, smooth component. Launch escape ladder, ladder is not distorted, deformed, pedal smoothly, reliable, fasteners will not have corrosion phenomenon.
Standard configuration:
Ladder width of 340 ± 5mm (335);
support length of 100 ± 5mm (95)
A ladder step distance of 340 ± 5mm (336);
maximum height of 10000 ± 100 (10010);
The suspension ribbon as the whole root without joint ribbon, ribbon thickness is over 2mm; ribbon width  is over 37mm;
The hook material for steel, to meet the requirements of GB/T905-1994, the width can be adjusted according to the thickness of wall