Weichai Heavy Machinery Co., Ltd. or "renamed" rose for three days

On the evening of May 31, Weichai Heavy Machinery issued an announcement stating that, since May 25th, the company's stock prices have accumulated a deviation of 20% from the closing price increase in three consecutive trading days, which is an abnormal fluctuation of stock tradi

Sewage truck maintenance matters


A: Reasonable determination of the maintenance cycle The scientific determination of the interval between various types of maintenance operations not only enables the car to maintain a good technical condition, but also saves some unnecessary troub