zinc carbonate with the purity of 57, which can be used in petroleum industry Our product, zinc carbonate can have CIQ test before export . We passed ISO Certificate years ago , and now we have exported our product to many parts of the worle such as South America, Middle...

zinc carbonate with the purity of 57% can be used in Petroleum industy as H2S scavenger and rubber industy Company Name: WEIFANG DONGFANGSHENG CHEMICAL INDUSTY CO. LTDWe can have our product Zinc carbonate CIQ test before export . We passed ISO Certificate years ago , and till...