... .Steel Scaffolding Walking Board 2.Material:Q195-Q235 3.Surface treat:hot-dipped galvanised 4.Width:210,225,240,250,420 ... detail:1.Steel Scaffolding Walking Board2.Material:Q195-Q2353.Surface treat:hot-dipped galvanised4.Width:210,225,240,250,420,480 ... means of providing anyre-enforcement to the boards at all. Cat Walk