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الشخص الذي يمكن الاتصال به Mr. Rujun
Maigaoqiao, Nanjing, Jiangsu
Standard: GB******0 Appearance: white crystal or crystalline powder Name of indicator Indicator First melting point, ℃ *9.0~*0.0 Water Content, %(m/m) ≤0.1 Arsenic (As)% ≤0.***1 Sulfate (S*4) % ≤0.**2 Heavy metal(Pb) % ≤0.***4 Cauterized residue% ≤0.*1 Free cresol(p-cresol)% ≤0.*2
