China Interactive Whiteboard and Smart Board - China Factory, Suppliers, Manufacturers

China Interactive Whiteboard and Smart Board, , , ,. The product will supply to all over the world, such as Europe, America, Australia,, ,, .

The difference between OS&Y gate valve and NRS gate valve

1.The stem of the OS&Y gate valve is exposed, while the stem of the NRS gate valve is in the valve body. 2.The OS&Y gate valve is driven by the thread transmission between the valve ...
How to choose concentric flanged butterfly valve?

How to choose flanged concentric butterfly valve? Flanged butterfly valves are mainly used in industrial production pipelines. Its main function is to cut off the flow of medium in the pipeline, or...
TWS valves – the connection between valves and pipes

The connection between the valve and the pipe The way in which the valve is connected to the pipe (1) Flange connection: Flange connection is one of the most common pipe connection methods. Gaskets...
The characteristic of butterfly valves from TWS Valve

Butterfly valves are important components in all walks of life, and Butterfly Valve will surely take the market by storm. Designed for superior performance, this valve combines the latest composite...
TWS Valve Wish You A Merry Chirstmas!

The Chirstmas Day is Approaching~ We TWS Valves International sales department here, Get together and Wish you a Merry Chirstmas and Happy new year! Thanks for your suppor for this year and we Wi...
History of the Development of China's Valve Industry (2)

The initial stage of the valve industry (1949-1959) 01Organize to serve the recovery of the national economy The period from 1949 to 1952 was the period of my country’s national economic reco...