Shanghai Guanlong Valve is one of the well-known brands in the valve industry, and its products are known for their high quality and reliability. If you need to find a brand with the same quality as Shanghai Guanlong valves, here are some references:

1. Taiwan Dongguang Valve: Founded in 1975, Dongguang Valve is one of the famous valve manufacturers in Taiwan , its products cover a wide range of products, including ball valves, butterfly valves, globe valves, gate valves, etc.

2. Australian Carls Valve: Carls Valve is one of the well-known valve brands in Australia. Its products are known for their high quality and reliability and are widely used in petroleum, chemical industry, electric power and other industries.

3. American Hanke Valve: Founded in 1946, Hanke Valve is one of the famous valve manufacturers in the United States. Its products cover various valve types, including ball valves, butterfly valves, globe valves, and gate valves. wait.

4. German Krupp valve: Krupp valve is one of the famous valve brands in Germany. Its products are famous for their high quality and reliability and are widely used in petroleum, chemical industry, electric power and other industries.

5. Japanese KITZ Valve: KITZ Valve is one of the well-known valve manufacturers in Japan. Its products cover various valve types, including ball valves, butterfly valves, globe valves, gate valves, etc.

These brands are well-known brands in the valve industry, and their product quality and reliability have been widely recognized. Of course, different brands may have differences in their product features, application fields, etc. Therefore, when selecting a valve, a comprehensive comparison and evaluation is required based on specific needs.