16. Iron and Steel:-

(i) Black sheets (plain), (ii) Black sheets (Corrugated), (iii) Galvanized sheets (plain), (iv) Galvanized sheets (Corrugated), (v) Rods, (vi) Joints, (vii) Angles, (viii) Channels, (ix) Plates, (x) Wire, (xi) Bars, (xii) Pig Iron, (xiii)Tin Plates, Terne-plate (xiv) Pipes, (xv) Plate.