valves control the flow of blood out of the ventricles. the image below shows the chambers and valves of the heart. circulation through the body the purposes of blood are to deliver oxygen and nutrients to tissues and organs and to carry away waste products. there are actually two loops of circulation...
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alatranet is representing some pump & valve manufacturing company. the leading products of the group include gate valves, globe valves, butterfly valves, ball valves, check valves and special valves etc., more than series and thousands of models and specifications. the products are produced by adopting...