Producer gas or water gas generators, with or without their purifiers, acetylene gas generators and similar water process gas generators, with or without their purifiers (excl. coke ovens,  electrolytic process gas generators and carbide lamps)
Generatorji za generatorski ali vodni plin, s svojimi čistilniki ali brez njih, acetilenski generatorji in podobni generatorji na moker postopek, s svojimi čistilniki ali brez njih