https://blog.gongquiz.com/2023/03/18/%ec%88%98%eb%8f%99-%ec%a0%95%ec%a0%84%eb%b6%84%ec%82%ac%ea%b8%b0electrostatic-spraying%eb%a1%9c-%ec%b9%a8%ed%88%ac%ec%95%a1%ec%9d%84-%eb%b6%84%ec%82%ac%ed%95%a0-%eb%95%8c-%ec%95%88%ec%a0%84%ec%9d%84/