1. Cov tshuab ntim khoom siv dav siv: nyob rau hauv kev ua lag luam: khoom noj khoom haus, tshuaj, tshuaj, kev lag luam siv (cov tshuab kev lag luam muaj feem tsawg).
2. Nws yog ib qho yooj yim siv (ua kom tiav lub hnab, ntsuas, paug, sealing, slitting, suav, luam ntawv batch naj npawb, thiab lwm yam)
3. Kev ua haujlwm siab: Lub zog ntawm lub tshuab ntim khoom lag luam nyob rau hauv Suav lag luam yog ze li ntawm 120-240 pob feeb es tsis txhob siv cov khoom ntawm phau 80s. Cov zis yog ntau tshaj li ob peb zaug.
4. Ntxuav thiab txuag hluav taws xob Siv lub tshuab ntim cov khoom kom huv thiab ua kom zoo. Tsis tas yuav tsum ua tes haujlwm. Tej zaum yuav siv huv, txuag cov ntaub ntawv, txuag nyiaj, txuag nyiaj, thiab txuag tau qhov chaw.
5. Cov kev tiv thaiv kev tiv thaiv sab nraud nrog kev pom kev zoo tuaj yeem ruaj ntseg ua haujlwm.
6, siv qhov tseeb shaker hom khob hloov ntaus ntawv, tuaj yeem kho lub ntim peev lub sijhawm twg los tau thaum lub sijhawm ua haujlwm ntawm lub tshuab, txo cov khoom poob thiab kev ua haujlwm kom zoo ntxiv;