Cov kav dej yas yog ib ceg tseem ceeb ntawm ntau yam khoom siv tshuaj tsim tsev. Los ntawm kev xav ntawm kev sib txawv ntawm cov khoom siv tshuaj lom neeg, cov kav dej yas tuaj yeem faib ua cov kav dej polyvinyl chloride (PVC), cov kav dej polyethylene PE, cov kav dej polypropylene (PP), thiab cov kav dej polyvinyl chloride (PP). Butene (PB) raj, ABS raj, thiab lwm yam. Cov ntawv thov ntawm cov kav dej yas feem ntau yog dej, tso kua dej, sib txuas lus fais fab, kev ua liaj ua teb, roj av, cua sov hauv pem teb, tiv thaiv hluav taws thiab lwm yam haujlwm.
Hauv 10 xyoo dhau los, tau tsav los ntawm kev txhim kho sai ntawm kuv lub tebchaws' kev lag luam loj, kuv lub tebchaws' cov yas yas tau ntsib kev txhim kho sai nyob rau hauv cov xwm txheej ntawm kev txhim kho sai ntawm cov khoom siv tshuaj lom neeg . Xyoo 2010, lub teb chaws cov yeeb nkab yas tso tawm ntau tshaj 8 lab tons, uas yog Guangdong, Zhejiang thiab Shandong suav txog 42% ntawm cov zis. Piv nrog rau cov kav hlau ib txwm muaj thiab cov kav dej sib txuas, cov kav dej yas muaj qhov zoo dua hauv ntau thaj chaw, yog li lawv tau pom zoo siv rau ntau qhov chaw.
Thaum lub sij hawm" Kaum Ob Xyoo Thib Ob Lub Tswv Yim" lub sijhawm, muaj ntau qhov chaw ci nyob hauv thaj tsam ntawm cov yas yas: kev tsim vaj tsev thiab kev tsim vaj tsev hauv nroog tseem muab kev xav tau ruaj khov hauv tsev, tab sis kev tswj hwm lub sijhawm luv; muaj kev txhawb nqa zoo los ntawm txoj cai tswj hwm kev txuag dej, nrog rau kev nqis peev txhua xyoo ntawm 400 txhiab nyiaj yuan, ua rau muaj kev xav tau ntau ntxiv rau cov kav dej; Kev tsim kho cov dej haus kev nyab xeeb nyob deb nroog thiab kev xa cov khoom tsim khoom mus rau lub tebchaws tau tsav kev txhim kho kev thov cov yas yas; cov pa roj thiab cov kev siv cua sov tseem yuav ua rau muaj kev xav tau nce ntxiv. kuv lub tebchaws tau tsim cov yas yas ua thiab thov kev lag luam raws polyvinyl chloride (PVC), polyethylene (PE) thiab polypropylene (PP) cov ntaub ntawv. Peb yam khoom ntawm cov khoom siv no suav nrog lub ntsiab ntawm cov kav dej yas. Qhov ua tiav tshaj plaws txhawb nqa cov saw hlau ntawm PVC thiab kev txhawb nqa ntawm cov khoom siv hauv tsev tau ua rau PVC cov kav dej nyob ib nrab ntawm kev ua lag luam nyob rau xyoo tas los no. Raws li kev txhim kho kev noj haus thiab kev txhim kho cov khoom siv tshuaj lom neeg txhim kho kev xa cov raj xa dej, kuv lub tebchaws' s PE, PP thiab lwm yam khoom siv yeeb nkab yuav nce qhov kev xav tau yav tom ntej.
Nrog kev txhim kho kev lag luam network thiab kev tsim khoom tsim tawm ntawm ntau thaj chaw tseem ceeb, kuv lub tebchaws' kev lag luam yas yas yuav cia siab kom ua tiav txoj hauv kev txhim kho kev noj qab haus huv yav tom ntej, thiab cia siab tias yuav ua lag luam ntau ntxiv sib qhia
