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国外电焊机标准工作虽则早在三十年代就有所开展,但从当前有关资料来看,迟至五十年代各主要工业国才提出了较多的标准资料,到六十年代以后,在国际标准化文献中才有所反映.有关几个主要国家的国家级或专业级标准,一般都有十数个,个别专业标准达50～60个(详见附录).这些标准多为量大面广的产品标准,基础零部件标准除西德外都比
Although the standard work of foreign welding machines has been carried out as early as the 1930s, according to the current relevant information, most of the major industrial countries put forward more standard information as late as the 1950s. By the 1960s, Literature reflects only the relevant country or professional-level standards in several major countries, generally have a dozen, some professional standards of 50 to 60 (see appendix). These standards are mostly large quantities Product standards, basic parts and components than West Germany than the outside