... powde or white pellet WEIFANG DONGFANGSHENG CHEMICAL INDUSTRY CO.,LTDCompany information:Weifang Dongfangsheng Chemical Industry Co.,Ltd. was established in 1995, ... volume in home and outside market. They are exported to Asia, Europe, Australia, Africa, South America and North America ... M/TS. we are also manufacturing various kind of chemical products, such as, Zinc Carbonate, Zinc nitrate,Zinc ...