Ntxiv rau qhov luaj li cas thiab kam rau ua kom zoo, qhov ncaj nto ntawm cov khoom yuav tsum muaj nyob rau hauv (qhov muag, qhov sib ntxiv, kev sib koom ua ke, gloss, flatness ... thiab lwm yam),
Rau cov khoom lag luam yas qis, ntau theem siab ntawm kev siv tshuaj molding tshuab, yuav tsum pib ntawm lub puab tsim, tau raws li qhov loj me, cov khoom siv, cov khoom yas, qhov loj me, khiav tawm, txiav txim siab mus rau ib qho tseeb Raws li txoj cai, raws li kev cai lij choj thiab ua raws li cov pwm me me ntsws los tsim, thaum ua tiav, kev txhaj tshuaj, thiab tom qab ntawd raws li ib puag ncig, kev ua cov raw khoom, kev ua haujlwm, txiav txim siab ua kom zoo tshaj qhov khoom loj tom qab ntswj, qhov tseeb, hloov mus rau qhov khoom tiav rau ntawm daim duab
Tsawg theem ntawm kev txiav txim siab molding tshuab, yog nyob rau hauv kev tsim pwm tsis yog txiav txim siab ntsws thaum txoj cai, thiab lwm yam, kom twv seb cov khoom tiav zoo tom qab txhaj tshuaj, tuaj yeem tsim ua rau yav tom ntej, raws li kev hloov cov khoom zoo dua , nrog rau cov khoom siv qhuav (nrog rau cov khoom siv ziab, kev hloov ntawm kev txhaj tshuaj ... Qhov zoo kawg nkaus ntawm qhov khoom yog ze rau cov cai ntawm cov khoom tiav, thiab nws yog tswj kom ua tiav no precision txhua zaus.