I believe that everyone knows that it is made of regular steel sheets during the purchase process. The content of silicon steel is very important. At this time, everyone should understand whether its content is about 0.8% to 4.8%. , Because if it is less or redundant, it will cause its ferrous substance to be larger or smaller, so that the size of the transformer cannot be reduced, so you must know about their regulations during the purchase process. How. During the purchase process, everyone should buy through formal factories as much as possible, because only formal factories can make them well. At this time, everyone can choose those factories with high praise rate for cooperation. The favorable rate is as high as 90% to buy silicon steel core.