tech grade
                        Wu
                        Cr2(So4)3 6H2O
                        Wr
                        ISO
                        30%~50%
                        Tech Grade
                        Powder
                        Industrial Grade
                        Dry and Cool Place
                        500.31
                        Qingdao
                        Shanghai
                        15days
                        JK
                        25kg/Bag
                        tech grade
                        China
                        320290
                        






