การผลิตเตาอบเตาหลอมและเตาเผา

This class includes:
- manufacture of electrical and other industrial and laboratory furnaces and ovens, including incinerators
- manufacture of burners
- manufacture of permanent mount electric space heaters, electric swimming pool heaters
- manufacture

This class excludes:
- manufacture of household ovens, see 2750
- manufacture of agricultural dryers, see 2825
- manufacture of bakery ovens, see 2825
- manufacture of dryers for wood, paper pulp, paper or paperboard, see 2829
- manufacture of medical, su