Beijing Sihai Xiangyun Plastic Parts Co. Ltd, established in 2008, is located in the east of Beijing. At the beginning of the company, we can only produce the diaphragm type check valve. Now, we have to develop various forms of small plastic check valve, including the diaphragm type, spring type, duckbill type, etc. With the development of the company and customer demand, we also gradually developed plastic joints and plastic quick coupling ( also named plastic quick- disconnect coupling ),...
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