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With a view to creating a stylish design of lighter, we have developed YEEPI® with an attractive translucent and hard colours body. Creatively inspired products are our focus. We excel in meeting the high standards our customers require by providing products
detailsCertain crystalline materials (like quartz, Rochelle salt and certain ceramics) have piezoelectric behavior. When you apply pressure to them, you get a charge separation within the crystal and a voltage across the crystal that is sometimes extremely high. For example, in
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