... Zn 22% min 3,Appearance white powder 4,Use for Agriculture Grade 1,Product name Zinc Sulphate Hepta2,Purity Zn 22% min3,Appearance ... white powder4,Use for Agriculture GradeSpecificationsZinc Sulphate HeptaZn 22% minPb 0.002% maxAs 0.002% maxPacking In 25 kg bagsTangshan C&M ... TradingCo.,Ltd,established in 1999, is a company mainly engaged in the trade of chemical products. Our main ...