In the insulation between the coils of paper craft (Kraft paper), which is the property of the paper that is used as an insulator in insulation with the paper thickness 0.08 mm to 3 billion to wire between floors, and the satire of wire protected in a thousand steps. Around the side of the coil will use craft paper (Kraft paper). Before you can use a thick 10 mm wooden board with a core of iron pellets among the press to prevent moving coils.
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