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China Factory Supply Industrial Grade 99.5% BF3 Boron Trifluoride Gas, Standard 47L Small Gas Cylinder for Chemical Catalysis & Semiconductor Doping, Find Details and Price about Boron Trifluoride Cylinder Bf3 Cylinder from China Factory Supply Industrial Grade 99.5% BF3 Boron Trifluoride Gas, Standard 47L Small Gas Cylinder for Chemical Catalysis & Semiconductor Doping - Chengdu First Industrial Gas Co., Ltd.