Subscribe to us and get update information from COVNA
Butterfly Valve has existed for a long time and has a wide range of applications. They first appeared in the 1930s and have been used by many industries since then. Butterfly Valves are usually made of cast iron and the name comes from the functionality of the disc. There are several different types of butterfly […]
2022 COVNA GROUP All Right Reserved.Huaqiutong| Privacy Policy | Terms & Conditions