post shore scaffolding height:1600-2900mm,1700-3000mm,2000-3600mm, 2200-3900mm,2200-4000mm external tube:60mm,56mm,48m post shorescaffolding prop,post ... ,steel prop,height:1600-2900mm,1700-3000mm,2000-3600mm,2200-3900mm,2200-4000mm,2800-5000mmexternal tube:60mm,56mm,48mm,internal tube:48mm,40mmthickness ...