This model of hydraulic hinge is with the sealed design. it has passed strict 50,000 open-close test and 48hours salt spray test. it has been brass plated in order to avoid to go rusting.
本款液压铰链采用封口式款型，严格通过5万次开关测试和48小时盐雾测试，表面多增加一层镀铜处理，防止生锈和腐蚀。
This model of hydraulic hinge is with the sealed design. it has passed strict 50,000 open-close test and 48hours salt spray test. it has been brass plated in order to avoid to go rusting.
本款液压铰链采用封口式款型，严格通过5万次开关测试和48小时盐雾测试，表面多增加一层镀铜处理，防止生锈和腐蚀。
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