On March 4, 2020, the Standing Committee of the Political Bureau of the Central Committee held a meeting and proposed to increase investment in public health services
Leakage of valve body and bonnet: Causes: 1. Low casting quality of cast iron, defects of sand eyelet, loose structure and slag inclusion on valve body and bonnet body 2. Freezing cracking within days;
High performance rubber liner butterfly valve is a well-structured butterfly valve, which is especially suitable for regulating or switching the flow and pressure of various tap water...
Valve is an important component in the pipeline system of petrochemical plant. It is one of the main leakage sources in the plant because of its variety and quantity...
Valve (valve) is the control part of the fluid delivery system, with cut-off, regulation, diversion, prevention of countercurrent, pressure stabilization, shunt or overflow pressure relief and other functions.