| Qingdao Free Trade Zone United International Inc. specializes in the research and manufacture of Calcium Gluconate,Ferrous Gluconate ,Potassium Gluconate,Copper Gluconate ,Manganese Gluconate ,Magnesium Gluconate ,Sodium Gluconate , Zinc Gluconate ,Gluconate-&-Lactone FCC(III) ,contact person:kevin wang Qingdao FTZ United International, Inc.18f Huaren International Building,2A Shandong Road,Qingdao City,Chinatel:0086-532-86069596,83891505~09fax:0086-532-83893695/83893696
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