Tsev > Xov xwm > Cov ntsiab lus

Khov ntawm cov khoom siv hnab

Ntim cov khoom noj khov feem ntau ntawm cov hwjchim nyob rau hauv lub qhov micro breakage tsis yooj yim mus nrhiav tau rau lub qhov muag rab peev xwm, kab mob yooj yim ntawm intrusion, yuav ua tau rau lwm yam kuab paug, ces tus yuav tsum ntim khoom yuav tsum xaiv puas, tej yam kuj thiab sealing uas muaj ntaub ntawv yas, nylon, polyester, polypropylene, composites yog tam sim no twb pib yuav muab coj los.