Spring instrument has passed the ISO9001:2015 international quality system certification, has obtained the national industrial product production license, national explosion-proof electrical equipment explosion proof certificate....
A good customer's staff and assistants, so that every user's investment has been a substantial return.
1, choose the type of products; 2, according to the special requirements of customers, design and manufacture ...
There are many types of valves, each has its own advantages and disadvantages, the following small series of five valve advantages and disadvantages, including gate valve, butterfly valve, ball valve, globe valve and plug valve, I hope to help you.
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