1. Lub thoob yas phom yog qhov ua kom sov, thiab cov khoom seem ntawm lub thoob yas chemical yog qhov muag muag los ntawm tshav kub sealing siv lub tshuab ziab plaub hau. Thaum cov viscosity ntawm cov seem ua me me, nws tuaj yeem muab tshem tawm yooj yim.
2. Siv cov txhuam lwv nrog so lub npoo ntawm lub tog raj tshuaj chemical, koj tuaj yeem yooj yim lw. Rau qhov viscosity ntawm cov seem, qhov yuav tsum tau txhuam lub sijhawm yuav sib txawv, thiab cov nyhuv ntawm ntxuav nrog dej cawv yog qhov zoo dua.
3. Kev siv cov ntawv sau sodium dej txhawm rau txhawm rau txhaws cov tshuaj yas, tseem tuaj yeem txais cov txiaj ntsig zoo ntxuav.
4. Pom ib daig ntawm daim ntaub qhuav npog nrog vinegar lossis mus rau lub ntsej muag, npog nws rau ntawm lub thoob yas ntim tshuaj lom neeg nrog cov khoom seem, tos kom txog thaum lub impurities tag nrho ntub, tom qab ntawd siv daim ntaub tawv nyias tuaj yeem tshem tau yooj yim.
5. Siv cov nplaum ua kom zoo zoo nkauj uas zoo khov rau tev tawm ntawm cov khoom seem, los yog tshem tawm cov khoom saum npoo.
6. Cov cua roj essence rub tawm cov tshuaj lom neeg siv tshuaj, uas tuaj yeem yooj yim tshem cov khoom seem.
7. Cov khoom seem ntawm lub nruas yas tshuaj lom neeg kuj tseem tuaj yeem tshem tawm los ntawm kev ntxiv me ntsis ntawm ammonia dej rau qhov sib xyaw, uas tuaj yeem ua rau saum npoo ntawm cov yas ntim tshuaj muaj qhov ci ntau dua.https: //www.fhpails.com/
