... : 38-48.6mm WT: 2-4mm Standard length: 6mtr let's talk more details Scaffolding steel pipeDue to their strength, scaffolding ... of buildings and other large structures.Standard: BS 1139, EN 39, JIS G 3444,GB15831,AS1576, ASTMSteel Grade: Q235B, Q345B, S235JR, S275JROuter ...