Taw qhia rau cov hnab ntim khoom sib xyaw

Kev sib xyaw cov ntaub ntawv ntawm ntau yam ntxwv ua ke los txhim kho qhov ua pa, av noo, roj tsis kam, dej tsis kam, thiab tshuaj tiv thaiv ntawm cov khoom ntim, kom lawv tuaj yeem siv cov kab, plua plav, tiv thaiv kab mob, lub teeb, ntxhiab, thiab ntxhiab tsw. Kev sib cais ntawm qhov tsis hnov ​​tsw, nrog rau cov cua sov-resistant, txias-resistant, thiab kev cuam tshuam tsis kam muaj kev ua haujlwm zoo dua qub thiab kev ua haujlwm, thiab muaj kev luam ntawv zoo thiab zoo nkauj.
Muab faib los ntawm kev ntim: peb sab, yin thiab yang hnab, nruab nrab cov ntsaws ruaj ruaj, hauv ncoo-hom hnab, tsib-sided hnab, yim-sided hnab, tus kheej-sawv hnab, zipper hnab, straw hnab, coils, cov ntaub ntawv hau, thiab lwm yam.
Kev faib tawm los ntawm kev ua haujlwm: siab yin -ib feem ntawm lub hnab ntim khoom noj, lub hnab ntim khoom noj, lub hnab ntim tshuaj tiv thaiv zoo li qub, lub hnab ntim tshuaj tiv thaiv kab mob, lub hnab ntim cov yeeb yaj kiab, lub hnab nqus tsev, lub hnab ntim tshuaj lom neeg, lub hnab ntim cov pa oxygen, lub hnab ntim huab cua bag, lwm.
Muab faib los ntawm cov ntaub ntawv: laser-plated zaj duab xis compound cov ntaub ntawv, laser hloov cov ntaub ntawv, cov ntaub ntawv cov ntaub ntawv, cov ntaub ntawv aluminium, cov ntaub ntawv yas, cov ntaub ntawv sib xyaw, thiab lwm yam.