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Axit oxalic- H2C2O4 99,6%
Axit formic HCOOH 85%
Natri Sunfua – Đá thối – Na2S
Natri metabisulfit – Na2S2O5
Nickel chloride
Nitric Acid (HNO3) 68%
Silicone LE45HV
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