1. What is casting
The liquid metal is poured into a mold cavity with a shape suitable for the part, and after it solidifies, a part product with a certain shape, size and surface quality is obtain...
Gate valve and butterfly valve both play the role of switching and regulating flow in pipeline use. Of course, there is still a method in the selection process of butterfly valve and gate valve. In...
The sealing performance of the valve is one of the main indexes to evaluate the valve quality. The sealing performance of the valve mainly includes two aspects, namely, internal leakage and externa...
Butterfly valve is a kind of valve, is installed on a pipe, used to control the circulation of medium in a pipe. Butterfly valve is characterized by simple structure, light weight, including transm...
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