boron trichloride BCL3 specialty gas ,,CF4 ,SF6 , CH4 ... , Jiangxi , HeBei , Zhejiang , Shanxi, Hubei, Hunan across mainland China and two overseas subsidiaries in Canada and Hongkong . The company ... platform for staff development , to enhance the competitiveness of China gas industry . Through our never –ending efforts , ... and offer great value for customer . boron trichloride, BCL3, specialty gases