semi-precious gemstone globe MOP Desktop gemstone globe gem stone Globe diameter: 330mm,220mm 150mm,110mm (optional) Stand Material: Zinc alloy Stand plating Color : golden/ancie
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2-Keto L-Gulonic酸 1.COMPOSITION 1.1 Short Name: NIL 1.2 Formula: C6H10O7 1.3 Dangerous impurities: NIL 2. PHYSICAL CHARACTER 2.1 Appearance: Light yellow powder 3. STO