Disassembly of hydraulic control valve main valve

In hydropower plants, the valve installed in front of the turbine volute is called the main valve. Hydraulic control valve The main valve is a self-lubricating water valve body, without additional oil lubrication, in case of damage to the main valve parts, according to the following instruction

China will support the listing of qualified cultural enterprises

The China Securities Regulatory Commission held a meeting recently to seriously convey and study and implement the spirit of the Sixth Plenary Session of the Seventeenth Central Committee of the Communist Party of China and the "Decision of the Central Committee of the Communist Party o

Changsha construction steel spot price mainstream stability

On the 22nd, the market price of construction steel in Changsha remained stable. As of the press release, wire rods, the mainstream price of Φ8mm high Pingshan Steel in 4740 yuan / ton; the same specifications of Hunan Steel prices at 4720 yuan / ton. Gr