Some common problems of scaffolding
Scaffolding Straightness and Horizontality Promise Error Item (Straightness) Promise Error (mm) Item (Levelness) Promise Error (mm) Each step h / 1000 and ± 2.0 within one span The height difference between the two ends of the horizontal frame ± l / 600 and ± 3.0 scaffold all H / 600 ± 50 scaffol...