... ./L.V., prefabricated Power Substation>,DL/T537-2002 <6-35kv Prefabricated Power Substation Ordering Technical Qualifications>,and GB/T17467 ... Year) Metal Enclosure, Distribution Board, LV Switchboard Metal Enclosure 6,000 Pieces / Month, Distribution Board 5,000 Pieces / ... Revenue (%) North America confidential 45.73 Oceania confidential 6.42 Mid East confidential 29.45 Domestic Market confidential ...