1. Kev tu txhua hnub. Kev tu txhua hnub ntawm daim ntawv sau tshuab yog qhov tseem ceeb. Tom qab rov siv dua, qee qhov seem yuav inevitably nyob hauv lub tshuab. Yog tias tsis ntxuav tam sim ntawd, lub neej ntawm cov hniav sib tsoo yuav raug txo.
2. Tsis tu ncua tshuaj xyuas sab hauv ntawm lub tshuab thermoforming.
3. Yog tias muaj hluav taws xob tam sim ntawd, tam sim ntawd txiav lub hwj chim mov, nres qee qhov kev ua haujlwm, thiab tom qab ntawd ua haujlwm nrog kev saib xyuas tom ntej.
Cov saum toj no yog ib qho kev qhia txog kev tu thiab tu txoj kev rau lub khob yas ua tshuab. Tau kawg, ntxiv nrog rau kev saib xyuas txhua hnub, yog tias koj yuav lub siab - zoo ntawm daim ntawv sau tshuab los ntawm qhov pib, koj tuaj yeem txo cov teeb meem tom qab. Kuv yuav tham txog kev xaiv cov ntawv sau tshuab tom qab.
