HSN CodeHSN Description

7307Tube or pipe fittings (for example, couplings, elbows, sleeves), of iron or steel

7318Screws, bolts, nuts, coach-screws, screw hooks, rivets, cotters, cotter-pins, washers (including spring washers) and similar articles, of iron or steel

7606Aluminium plates, sheets and strip, of a thickness exceeding 0.2 mm

7306Other tubes, pipes and hollow profiles (for example, open seam or welded, riveted or similarly closed), of iron or steel