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Battery Exhaust Valve for Lithium Battery (HD-116). Customizable Gas Pressure: Gas open and close pressure can be designed according to customer requirements. Explosion-Proof Design: Features explosion-proof, acid fog-proof, and alkaline resistant capabilities. National Key Product: Includes pored-polymer filter sheet recognized in the 2009 National key new products plan. Strict Quality Control: Components tested by IQC and OQC with standard testers to ensure excellence. Premium Raw Materials: Sourced from the best raw materials globally to ensure high quality. Professional Manufacturing: Specialized in designing and manufacturing safety valves for power lithium batteries.