China’s foundry industry is in a critical period from a big producer to a powerful foundry country. The upgrading of products and the upgrading and

At present, China’s industrial production is characterized by a large variety of products, rapid renewal, and the market is still in the buyer’s market situation.

1. In order to prevent eye to eye corrosion due to flange cover heating, the welding current should not be too large, less than about

Flange is the interconnecting part of pipe and pipe, which is used for the connection between pipe ends. Flanges are also used at the inlet

Chinese culture has a long history and is broad and profound. Ancient festivals are an important carrier of traditional culture. The formation of ancient festivals

Threaded connection is a simple connection method, which is often used in small valves.