Vim li cas ho muaj ntau qhov kev cob qhia siv cov hnab looj tes coated? Cov hnab looj tes coated yog ua los ntawm cov ntaub lis loos, thiab cov xib fwb yog siv nrog ib txheej ntawm polyacid cob, uas muaj zog ua kom tsis muaj zog. Qhov ntsia thawv thaj tsam yog sib npaug los tiv thaiv kom tsis txhob muaj siab rau cov ntiv tes thaum ua haujlwm. Ntev nylon stretch nylon yog siv los tiv thaiv cov plua plav thiab tsim nyog rau kev ntxuav tes ua hauj lwm. Nws yog ua pa thiab tsis hnov ntxhov ntev ntev. Vim tias nws yooj yim, nws muab cov neeg siv kom haum zoo dua. Cov hnab looj tes coatated yog cov ntaub ntawm cov nylon yarnlessly ntawm cov ntaub nplaum.
