[Class : 6] Structural Steel, Angles, Shapes & Sections Such As Beams, Channels Angles, Rounds, Squa Ele. Steel Bars And Twisted Steel Bars, Unwrought And Partly Wrought Common Metali Pipes And Tubes, Steels Balls, Nails And Screws, Ores And Other Goods In Non Precious Metal Not Included In Other Classes.