Industry
Monitoring and control systems, centralised, for oil and gas production fields, pipelines and distribution networks, Oil and gas industry plant and equipment, Energy, Environment, Gas pressure adjusting systems, gas production plant, Monitoring machinery and equipment for oil and gas extraction, Natural gas production plant and equipment, Valves, metal, changeover, for gas, Metal pipework, valves and containers, Construction, Valves, cocks, taps and fittings, metal, by use