Laizhou city Zhonghui Chemical Co., Ltd.liability is located in Laizhou, Shandong Province suburbs, south of Qingdao, Yantai, east side, public, iron, sea lines Micronesia weaving, transport facilitation, transport convenient, abundant, magnesium mining industry ranked second. Zhonghui Chemical Co., Ltd.liability,and fully relying on local rich mineral resources, specializing in the production of industrial grade, agricultural grade magnesium sulfate heptahydrate. The company occupies 15,000 sq...