4三氟乙酸酐传感器C4F603-4L量程0-1000PPM 三氯氢硅SiHC13-4H

Action of Trifluoroacetic Anhydride and Heptafluorobutyric Anhydride on Amic Aci 三氟乙酸酐和七氟丁酸酐对氨【中商原版】