1) Txhim kho kev ntim khoom. Lub tshuab nqus tsev ntim thermoforming yog tsim rau kev xav tau ntau lawm. Kev ua haujlwm ntawm cov khoom siv yog ua raws li qhov muag -kos deb. Lub peev xwm tsim khoom ntawm cov khoom noj txom ncauj me me tuaj yeem ncav cuag 200-300 daim ib feeb, thiab lub peev xwm ntau lawm ib teev yog li 13,000. Lub peev xwm ntau lawm ntawm 8 teev ib hnub yog 110,000, txhim kho kev tsim khoom zoo heev.
2) Diversified ntim cov duab. Lub tshuab nqus tsev ntim thermoforming tuaj yeem hloov cov pwm rau cov khoom ntim sib txawv. Cov pwm muaj ntau haiv neeg thiab tuaj yeem kho raws li cov khoom.
