Weifang Toption Chemical Industry Co., Ltd. ,founded in 2006 with a registered capital 5millions, 150 employees, dedicated to enviromental friendly chemicals; is a professinal manufacturer of Calcium Chloride ,Barium Chloride,Magnesium Chloride,Sodium Metabisulfite, Sodium Bicarbonate, Sodium Hydrosulfite,Gel Breaker ,etc.