Txoj kev siv
1. Qhib lub nplai, muab tso rau ntawm lub khob ntsuas thiab tshem nws
2. Muab kua nplaum A ua ntej, ces kua nplaum B, qhov kev faib ua feem yog 1.25: 1
3. Do tusyees kom txog thaum nws yog pob tshab thiab tsis muaj teeb duab
4.Cov kua nplaum sib xyaw tseem yog ob peb feeb.thaum cov npuas ploj mus rau hauv cov cuab yeej sib tsoo
5.Siv tus pas txhuam hniav los lo me ntsis xim rau cov kua nplaum poob pwm, thiab do me ntsis rau qhov xav tau tus cwj mem
6.Los yog ncuav lub toner poeder rau hauv lub npaj gutta percha, do tusyees thiab ces ncuav rau hauv pwm
7.Nws tuaj yeem demoulded tom qab cov nplaum ua kom tiav, feem ntau nws yuav siv sijhawm 24 teev hauv chav sov
8.Tom qab demoulding, polish me ntsis, cov khoom tiav yuav zoo nkauj dua