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Shut-off valves are widely used in the different sectors like water treatment sectors, manufacturing industries where ...

However, there are two types of valves that are commonly used ... and they can be maneuvered by hand without using any tools.

At the end of that presentation, he was asked several questions about water valves. "It is unfortunate that we are here, but we have a solid plan and my plan is to build a process that isn't ...