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3PC fixed ball vlave The difference between floating ball valve and the fix ball valve
The floating ball valve is simple in structure, small in size and has good sealing, but the ball of the floating ball valve is floating, Under the medium pressure, the ball can produce certain displacement and press on the seat at the outlet end to ensure the seal of outlet port
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Certificate of Origin Certificate of Origin China- Pakistan FTA
China and Pakistan signed the China-Pakistan Free Trade Agreement, China exports to Pakistan as long as the products accord with the "China-Pakistan Free Trade Agreement rules of origin", exporters can apply for the CERTIFICATE OF ORIGIN CHINA- PAKISTAN FTA (that is, certificate of origin China-Pakistan FTA (FORM P)
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ceramic rotary disc gate valve Comparison of ceramic rotary feed valve and dome valve
Pneumatic dome valves used to be used as feed valves for warehouse pumps in the dry ash delivery system at coal fired power plants.
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butterfly valve The application difference between flange and wafer butterfly valve
Butterfly valves are not only widely used in petroleum, gas, chemical and water treatment, but also in the circulating water system of power plants.Wafer and flange are two types of connecting.Flange butterfly valve body has flange on both ends, connected to pipe flange.
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 globe valve opening height calculation Angle globe valve opening height calculation
Angle globe valve opening height calculation During the globe valve designing and application,is the opening height of the valve related to which parameters?The ...
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form E Certificate of Origin FORM E
Sometimes, certificate of origin is goods export documents , the customer usually have related requirements to the documents, Different certificates of origin can enjoy different import tax rates to customers, such as one importer is from Vietnam, he can purchase goods from different countries , why did he choose China? One reason is China-ASEAN free trade agreement, and the certificate of origin is that he can enjoy the documents of preferential policies.For example FORM E:
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How to select tank bottom angle valve
Tank bottom angle valves are divided into disc opening into the valve and disc opening into the tank . Sometimes ,they are also called open-down type and open-up type .
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