282113 Industrial or laboratory electric furnaces and ovens/ induction or dielectric heating equipment

28211330 Electric bakery and biscuit ovens 28211351 Resistance heated industrial or laboratory furnaces and ovens (excluding bakery and biscuit ovens) 28211353 Electrical induction industrial or laboratory furnaces and ovens 28211355 Electrical industrial/laboratory furnaces/ovens, induction/dielectric heating equipt. including dielectric furnaces/ovens excluding infra-red radiation ovens, resistance heated furnaces/ovens 28211357 Electric infra-red radiation ovens