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Question:

What does telescopic ball valve mean? What does it mean?

What does telescopic ball valve mean? What does it mean?

Answer:

In fact, the length of L can vary within a certain range
Telescopic ball valve, simply said that the ball valve plus telescopic structure, as a compensation and shock absorption role.
An expansion valve is mostly for repair or replacement of the water meter behind the expansion is the activity space, for example for water when the water meter is just let it back so easily won, for good and put it out to tighten the gentry good handle table.

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