Cov khoom nyom uas yog cov khoom siv yog feem ntau ua los ntawm cov khoom siv tshuaj. raws li cov ntaub ntawv tshuaj lom neeg thiab cov tshuab ua haujlwm, cov khoom siv dag zog ts
Ru tsev ntsuab yog ib txoj kev zoo ntawm ntsuab. Raws li ib feem tseem ceeb ntawm nroog ntsuab hauj lwm, nws tau raug txhawb pab thiab txhawb nqa. Ru tsev ntsuab tau
Feem ntau ntawm cov ntaub ntawv raw yog polyethylene (PE) thiab polypropylene (PP), polyvinyl chloride thiab polyamide kuj siv tau. Cov nplooj yog ntsuab rau mimic ntuj nyom thiab
Cov nyom tsuas yog siv rau hauv cov nram qab no: Thawj yog siv rau hauv nroog ntsuab, kev tsim kho kom zoo thiab muaj pes tsawg leeg ntawm cov nroj tsuag ntsuab,
Cov nyom muaj cov nram qab no: Cov xwm txheej hauv qab no yog: Raws li hom kev nyab xeeb muaj peev xwm muab faib ua: Cold caij nplooj ntoos hlav thiab sov so rau ob theem loj.
Kev tsim kho ntawm cov nyom
Kev tswj kev ntsuas ntawm cov nyom
Nyom yog ib qhov "kub nroj tsuag toj roob hauv pes" hauv xyoo tas los, Cov teb chaws Europe thiab Asmeskas teb feem ntau hu ua turf, fine, zoo nkauj hu ua cov nyom.
Lus Txhais ntawm lawn
