Denim Ntxuav Potassium Permanganate

Denim Ntxuav Potassium Permanganate

Cov kua tshuaj muaj zog nrog oxidizing khoom muaj peev xwm koom tau rau hauv cov tshuaj tiv thaiv oxidising nyob rau hauv ntau ntawm denim ntxuav, zuj zus ntawm lub plhaub ntawm cov yas yeeb yaj kiab uas muaj cwj mem kua duav. Cov tshuaj paug tuaj yeem tuaj yeem nrog cov kua qaub nruab nrab rau hauv cov pa oxygen kom tua tau cov xim ...

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