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...
Water treatment industry is a multidisciplinary and knowledge-intensive high-tech industry, which is an important symbol of the development level of national environmental protection industry...
According to incomplete statistics, the number of enterprises lacking smelting workers, molding workers, engineers,quality control and management personnel in China's foundry industry is about 58%, 20%, 50%, 34%...
Recently, the state administration for market supervision and administration of China (Standardization Administration of China) approved and issued 343 national standards and 2 revision orders of national standards, including...