I sell frequency imprinted products and jewellery. I'm wanting to expand my line and offer more jewellery. I'm currently using holographic stickers with the jewellery and the frequency is lasting due to the sticke however I'm wanting to try something not with the stickers. Has anyone had any success with jewellery? Also if I imorint copper how long does it last? Thanks
我銷售頻率印刻產品和珠寶。我想拓展產品線，增加珠寶種類。目前我在珠寶上使用全息貼紙，由於貼紙的緣故，頻率印刻效果比較持久。但我想要嘗試不用貼紙的方法。有人在珠寶上成功使用過頻率印刻嗎？另外，如果我在銅上印刻，頻率印刻效果能持續多久？謝謝！
