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1.Use sodium hypochlorite diluent (bleaching agent) for tea, fruit, coffee sauce vinegar, leather shoes and other stains, soak them for 20-30 minutes and wipe them off with cloth.
2.The mildew point of ink and antifouling wax is made by sodium hypochlorite diluent (bleach). When using, dip the bleach into the stain and soak for a few minutes. It
3.. Cement, scale, rust and rust stains should be cleaned several times with hydrochloric acid or phosphoric acid solution. It
4. Use alkaline detergents or organic solvents (acetone, triethylene) for paint, greasy marking pens, and surface antifouling wax layers to remove paint and dirt. It
5. Use of offset hammer printing decontamination: first use 20% - 40% sodium hydroxide (NaOH) solution immersion for 24 hours and then wipe clean with cloth, and then use 30% - 50% hydrochloric acid
(Hcl) soak the solution for thirty minutes and wipe with cloth. It
6. ice cream, alkaline detergent,
7. lime scale, acid detergent.
Remarks: 1. Wear rubber gloves when using the above detergent; 2. Remove the stain and clean the brick surface with clean water. 3. there is the latest detergent in the market or supermarket