Ringlock scaffolding system -scaffolding vertical with rings (rosette) welded on -scaffolding ledger and brace with casting steel ledger ends and brace ends with wedger pins -finishing: hot dip galvanized -steel material: high strength steel in s355 -specifications: Vertical: od 48.3x3.2mm(60.3mmx4mm available) Ledger: od 48.3x3.0mm(3.2mm is available) Brace: od 48.3x2.5mm(3.0, 3.2mm available) -standard: en10219 -iso 9001 certified manafacturer -oem service with embossed.