Ring Lock Scaffoldings Standard/Vertical 1)material:Q235,Q255 2)OD*Thc:48.3*3.25mm 3)size:500-4000mm 4)surface treament:HDG Ring Lock Scaffoldings Standard/Vertical1)material:Q235,Q2552)OD*Thc:48.3*3.25(mm)3)Size:500mm,1000mm,1500mm,2000mm,2500mm,3000mm,4000mm4)Surface treament:hot-dip galvanized,painting,customized.5)high quality and competitive price.6)OEM services7)ISO9001:2000 approved.