7 Machines, namely, turbines and turbo compressors, burner, namely, gas burner, oil burner, coal burner, boiler, namely, electric boiler, oil boiler, gas boiler and coal fired boiler, pipelines in the nature of branching pipes of metal, for the chemical and petrochemical industries; Machines, namely, turbines and turbo compressors, burner, namely, gas burner, oil burner, coal burner, boiler, namely, electric boiler, oil boiler, gas boiler and coal fired boiler, pipelines in the nature of branching pipes of metal, for the process engineering industry; Machines, namely, turbines and turbo compressors, burner, namely, gas burner, oil burner, coal burner, boiler, namely, electric boiler, oil boiler, gas boiler and coal fired boiler, pipelines in the nature of branching pipes of metal, for plastic processing and metalworking; Machines, namely, turbines and turbo compressors, burner, namely, gas burner, oil burner, coal burner, boiler, namely, electric boiler, oil boiler, gas boiler and coal fired boiler, pipelines in the nature of branching pipes of metal, for raw material extraction; Machines, namely, turbines and turbo compressors, burner, namely, gas burner, oil burner, coal burner, boiler, namely, electric boiler, oil boiler, gas boiler and coal fired boiler, pipelines in the nature of branching pipes of metal, for oil and natural gas extraction