Ua ntej paub meej tias huab cua qhuav hlawv (qhov kub ua haujlwm siab npaum li cas? Puas muaj kiv cua ncig) lossis cov kua cua sov (kua khoom, dej)?
1. Voltage thiab hwj chim (qhov tseem ceeb tsis tau)
2, Txoj kab uas hla.
3. Unilateral ntev
4. Tube chaw nrug (R radian)
5. Fastener xov txoj kab uas hla (tsis muaj xov yuav tsum tsis muab)
6. txhuas hlau ntev (silicone tuag casting sib koom)
7. Cov khoom siv (raws li qhov chaw cua sov xaiv).
Yog tias koj tau siv U-shaped cua sov caij ua ntej, koj tuaj yeem muab qhov loj me dhau los ncaj qha. Yog tias koj tsis tau siv nws ua ntej, pls muab cov ntaub ntawv hais txog daim ntawv thov, qhov hnyav, pes tsawg qib thiab ntev npaum li cas peb tuaj yeem pab koj txheeb xyuas seb koj xav tau lub zog npaum li cas. Thaum kawg, raws li qhov chaw teeb tsa los tsim u-hom hluav taws xob cua sov yeeb nkab.
