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我厂生产的KSGB500/6矿用移动变电站主变压器,箱侧壁是采用4毫米厚的A3钢板弯曲成的大型波纹板,工件见图1所示。
KSGB500 / 6 mine mobile substation main transformer of our factory, the side wall of the box is a large corrugated board which is bent into a 4mm thick A3 steel plate. The workpiece is shown in Fig.1.