rubber grips of ladder hook for roof ridge can help prevent deform to shingles and metal roofs, also more convenient and safe for roof inspection; Cardan wheels make it easier to slide the stairs ...

On October 9, 2024, in Hebei province, China, @Héběi~Gěng Huī~Gōngsī recorded security footage showing a man climbing a roof using a ladder. As he reached the last steps, the ladder fell, leaving him ...