Droing bilong wanpela spiral step

Droing bilong wanpela spiral step

Pastaim data
Hait bilong apim 2700 mm
Diamita bilong step 2000 mm
Insait diamita 100 mm
Namba bilong ol step 11
step rotesen angle 450°
Step tiknes 50 mm
Hait bilong step 245 mm
Step angle 40.9°
longpela bilong step 950 mm

Ol narapela step sais
Step width 699 mm
step blank width 746 mm