Purlin 1.Thickness:1.0-8.0mm 2.Width:30mm-350mm 3.Depth:15-100mm 4.Lip Width:10-20mm StandardAISI, ASTM, BS, DIN, GB, JIS, etcGradeQ195,Q215,Q235, etcThickness1.0-8.0mmWidth30-350mmDepth15mm-100mmLip Width10-20mmWeight0.912-43.588kg/mSurface FinishedBlack or Galvanized Purlin is hot rolled coil by cold bending processing, thin wall, light weight, high strength, excellent section properties, ...