Potash cargo tight seller initiative

The North American Potash Sales Alliance announced a 50-cent increase in CIF for Asia and the entire Latin American spot market. These price increases reflect the new export price benchmark for the North American Potash Sales Alliance, which is a standard potassium chloride CIF of US$510 and large

Spring-type quick closing butterfly valve structure

Butterfly valve structure: Spring type quick closing butterfly valve is mainly composed of butterfly valve, hydraulic-spring drive device, hydraulic station and electric control box. When the valve is opened, the system issues a command (the electric control box is set to remote control) a