这台焊机是上海劳动电焊机厂革命干部、革命技术人员和上海锅炉厂工人同志共同协作下制造的,它适用于不锈钢和有色金属的焊接,性能超过钨极氩弧焊机,生产率提高6～10倍,氩气消耗少,能进行全位置焊接。 NZA20—200型熔化极氩气保护自动弧焊机,焊接电源为ZPG3—200型硅脉冲焊 This welding machine is manufactured by the revolutionary cadres, revolutionary technicians and workers from Shanghai Boiler Works in Shanghai Labor Welder Factory. It is suitable for the welding of stainless steel and non-ferrous metal with the performance exceeding that of the TIG welder and the productivity is increased by 6 ~ 10 times, less argon consumption, can be all-position welding. NZA20-200-type melting argon protection automatic arc welder, welding power supply for the ZPG3-200 type silicon pulse welding