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leixin gypsum 15 june 2012——the general manager of qingdao guanglan industry &trade co., ltd, chenjing, visit and inspect our factory, guide our work. accompanied by zhangjie who is our general manager, chen visit the company's mine, production factories and office, realize the company's production operation situation and productive technology, inquiry the production process, evaluate my company's quality management system. both sides are honest communication, have carried on preliminary consultations and exchange about the calcium sulfate cooperation. we believe that qingdao guanglan industry &trade co., ltd., chenjing’s visiting laid a good foundation for the next step cooperation.