■GI型-高真空蝶阀 ■ GI型高真空蝶阀用于接通或切断真空管路中的气流。适用介质为纯净空气和非腐蚀性气体。 ■GIHigh Vacuum Butterfly Valve ■GI high vacuum butterfly valve is used to put through or cut off the airflow in vacuum pipeline. Applicable medium can be pure air and noncorrosive gases. ■主要技术性能Main Technical Performance