１　国外镀锌钢板的发展热镀锌于１７４２年在法国首先使用，并在１８３６年用于工业性生产，１９３５年发明了森吉米尔法，１９３７年在美国建立了第１条连续热镀锌带钢生产线，１９４２年在美国建成了第１条连续电镀锌带钢生产线，至今已有１５０多年的生产历史。镀锌钢板分 1 Development of galvanized steel in foreign countries Hot dip galvanizing was first used in France in 1742, and in 1836 for industrial production. In 1935 the Sendzimir method was invented. In 1937, the first continuous galvanizing belt was established in the United States. The steel production line, in 1942, established the first continuous electrogalvanized steel strip production line in the United States, and has a production history of more than 150 years. Galvanized steel sheet