Section 15 Base metals and articles of base metal 73 Articles of iron or steel 73 14 Cloth (including endless bands), grill, netting and fencing, of iron or steel wire; expanded metal of iron or steel. 73 14 20 Grill, netting & fencing, welded at intersection, with max X-sectional dimention >=3mm.. Commodity Code Description 73 14 20 00 Grill, netting & fencing, welded at intersection, with max X-sectional dimention >=3mm..