- Aluminum coating of metal products for the trade
- Bonderizing metal and metal products for the trade
- Chasing metals and metal products for the trade
- Coating metals and metal products for the trade
- Coating of metal and metal products with plastics for the trade
- Enameling metals and metal products for the trade
- Engraving metals and metal products (except printing plates) for the trade
- Etching metals and metal products (except printing plates) for the trade
- Flocking metals and metal products for the trade
- Galvanizing metals and metal products for the trade
- Glazing metals and metal products for the trade
- Hot dip galvanizing metals and metal products for the trade
- Japanning metals and metal products for the trade
- Lacquering metals and metal products for the trade
- Painting metals and metal products for the trade
- Parkerizing metals and metal products for the trade
- Powder coating metals and metal products for the trade
- Rustproofing metals and metal products for the trade
- Sherardizing of metals and metal products for the trade
- Varnishing metals and metal products for the trade
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