... C Channel Thin wall, light weight, cross-section excellent performance, high strength, etc. StandardAISI, ASTM, BS, DIN, GB, JIS, etcGradeQ195,Q215,Q235, Q345 ... , etcThickness1.0-8.0mmWidth30-350mmDepth15mm-100mmLip Width10-20mmWeight0.912-43.588kg/mSurface FinishedBlack or Galvanized C channel ... so on.b.) Compared with the traditional channel, c channel can save 30% of the same strength of ...