Investors' high expectations may lead to disappointment due to the company's recent negative growth rates. The company's shrinking revenue and the industry's projected growth make the high P/S ratio uncomfortable, as it's unlikely to support such positive sentiment for long.

Despite a recent share price drop, Hangzhou Kaierda Welding Robot Co.,Ltd.'s P/S remains high. If medium-term revenue trends continue, shareholders and potential investors could face significant risk.