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为配合国家西气东输工程而新研制成功的NB - 5 0 0AMS焊机一机多用 ,具有输出平特性和下降特性。逆变技术在焊接电源中广泛应用 ,对国民经济具有重要意义。
To cope with the national West-East Gas Pipeline project and the successful development of the NB-500AAS welding machine with a multi-purpose, with the output flat and drop characteristics. Inverter technology widely used in welding power supply, the national economy is of great significance.