Investors fear the company's revenue growth may lag behind the industry, causing a low P/S ratio. The company's recent medium-term revenue results show a downward trend, posing a threat to the share price.

Investors may believe Zhejiang Xinchai's revenue growth will underperform the industry, potentially leading to a further drop in the P/S ratio and disappointing shareholders. Given recent revenue trends, the share price is unlikely to see significant movement soon.