Steel Ringlock Standard Scaffolding/Scaffold with or Without Spigot 48.3mm/ 60.3mm Diameter Pipe - China Steel Ringlock, Formwork Scaffold | Made-in-China.com
Steel Tube - ScaffoldMe
How to Calculate Scaffolding Tubes Theoretical Weight - World Scaffolding Co., Ltd.
Scaffolding Tube (Galvanised Steel) – 6.0m (19'8”) x 48.3mm O/D x 3.2