5carddraw| Yingli Co., Ltd.(300956.SZ): Metal thin films have good electromagnetic shielding properties

Gelonghui May 27 丨 Yingli Shares (3009565carddraw.SZ) said on the investor interaction platform5carddrawThe company's vacuum coating is a commonly used surface treatment technology that forms a metal film on the surface of a material. Metal films have good electromagnetic shielding properties and can effectively absorb and reflect electromagnetic waves.