world stage 1.CE,ISO9001:2008; 2.Stage; 3.Standard structure; 4.High load capacity,high raliability, world stage1.Certificate:CE,ISO9001:20082.Material:Q235 tube3.Diameter:48*3.5mm, 42*2.3mmThis picture is a big and beautiful stage set up by our Ring lock system scaffolding in front of the China Pavilion in EXPO 2010 Shanghai to a republic conference.1. Light and fastIt can be built quickly, ...