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<title><![CDATA[EC21 Product Catalogs - multi stage control valve]]></title>
<link><![CDATA[https://www.ec21.com/ec-market/multi_stage_control_valve--214099/1/multi stage control valve.html]]></link><item>
<title><![CDATA[China Disposable Trocar Factory for OEM Service Manufacturer]]></title><link><![CDATA[https://disposabletrocar.en.ec21.com/China_Disposable_Trocar_Factory_for--12053130_12053462.html]]></link><description><![CDATA[Multi-stage sealing mechanism:
Primary seal (dynamic seal): Resilient valves (e.g., petal valves, flap valves) for instruments of different diameters, which are required to maintain airtightness in t]]></description><pubDate><![CDATA[20250401]]></pubDate></item>

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