2433 Cold forming or folding

24.33.1 Open sections cold formed or folded
24.33.11 Open sections cold formed or folded of non alloy steel
24.33.12 Open sections cold formed or folded of stainless steel
24.33.2 Ribbed sheets of non alloy steel
24.33.20 Ribbed sheets of non alloy steel
24.33.3 Sandwich panels of coated steel sheet
24.33.30 Sandwich panels of coated steel sheet
24.33.9 Sub-contracted operations as part of manufacturing of cold formed or folded products
24.33.99 Sub-contracted operations as part of manufacturing of cold formed or folded products