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9

Mechanical and plant engineering

Thermal processing engineering

Heating furnaces

1712.17

Heating furnaces for precious metals

1712.24

Glass heating furnaces

1712.27

Hard metal heating furnaces

1712.31

Ceramics heating furnaces

1712.37

Light metal heating furnaces

1712.41

Steel heating furnaces

1712.51

Hood-type and elevable hearth furnaces, gas-fired

1712.55

Roller hearth and walking-beam furnaces, gas-fired

1712.87

Forging furnaces