Tsis yog txhua lub tshuab pwm tuaj yog yas. Txawm hais tias tshuab moulding yog cov txheej txheem moulding yog siv los tsim cov hollow cov hollow, xws li ntim ntim ntim, cov ntaub ntawv siv tsis txwv rau yas. Tshuab cov khoom siv tshuab tuaj yeem ua tau ntawm ntau yam ntaub ntawv, suav nrog tab sis tsis txwv, Polyrropylene, polyarylene, polyarroter, polyamide, cellulose acetate, thiab polyacetal resins. Cov ntaub ntawv no tau ua kom sov thiab tshuab tshuab ua pwm rau hauv cov pwm thaum lub tshuab moulding los ua cov khoom lag luam hollow ntawm ntau yam qauv.
Tsis tas li ntawd, tshuab moulding tshuab kuj tseem muaj kev txhim kho tshiab xws li moulding moulding, uas txuas ntxiv nthuav cov khoom xaiv thiab kev siv cov tshuab pwm puab seem2. Piv txwv li, siab {{- ntom polyethylene (HDPE) yog ib qho ntawm cov khoom siv feem ntau hauv tshuab pwm. Nws muaj cov tshuaj zoo kuj, kub ua hauj, kub rwb thaiv tsev, thiab tsis {{3} toxicity. Nws yog dav siv hauv cov zaub mov, tshuaj lom neeg, thiab ua kua ua. Polyethylene (Tsiaj) kuj yog siv tshuab moulding cov khoom nrog cov dej tshab, thiab tsim nyog rau kev ua cov taub dej, khoom noj thiab lwm yam khoom lag luam.
Yog li ntawd, txawm hais tias lub tshuab moulding feem ntau yog siv rau kev tsim cov khoom yas, cov ntaub ntawv siv tsis yog txwv rau cov yas, tab sis suav nrog ntau yam khoom siv yas thiab cov khoom siv.