Qhov zoo ntawm Liquid Sulfur Black

1. Yooj yim rau siv: Cov kua Sulfur Black tuaj yeem tsim los ntawm kev ntxuav nrog dej;

2. Yooj yim kho qhov ntxoov ntxoo rau cov kua sulfur dub;

3. Tsis tas yuav siv cov khoom siv ntawm Sodium Sulfide;

4. Kev tiv thaiv ib puag ncig, tsis muaj ntxhiab tsw, Cov dej khib nyiab me me;

5. Cov kua sulfur dub tuaj yeem ncaj qha pad dyeing, dip dyeing, jig dyeing;