SECTION XV — BASE METAL & ARTICLES OF BASE METAL
Chapter 73
Articles of iron or steel
50 HS codes
7301SHEET PILING OF IRON OR STEEL, WHETHER OR NOT DRILLED, PUNCHED OR MADE FROM ASSEMBLED ELEMENTS; WELDED ANGLES, SHAPES AND SECTIONS, OF IRON OR STEEL7302RAILWAY OR TRAMWAY TRACK CONSTRUCTION MATERIAL OF IRON OR STEEL, THE FOLLOWING RAILS, CHECK-RAILS AND RACK RAILS, SWITCH BLADES, CROSSING FROGS, POINT RODS AND OTHER CROSSING PIECES, SLEEPERS (CROSS-TIES), FISH- PLATES, CHAIRS, CHAIR WEDGES, SOLE PLATES (BASE PLATES), RAIL CLIPS, BEDPLATES, TIES AND OTHER MATERIAL SPECIALIZED FOR JOINTING OR FIXING RAILS7303TUBES, PIPES AND HOLLOW PROFILES, OF CAST IRON