廣州昊天化學(集團)有限公司7萬噸/年離子膜燒堿項目4套KHS-16.5KA/500V晶閘管整流裝置正在運行Guangzhou Haotian 100000T/Y ionic membrane NaOH project4 sets of KHS-16.5KA/500V thyristor Rectifier are running