Shijiazhuang helv co.,ltd
our company can provide valves for you , such as butterfly valve , gate valve ,ball valve , globe valve , check valve , and so on . if you are interested , please contact us . thanks waiting for your
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our company can provide all kinds of butterfly valves for you , such as wafer butterfly valve , flange butterfly valve , cast iron butterfly valve , cast steel butterfly valve , and so on.
if you are interested , please contact us . thanks