Nrog rau kev tswj hwm ib puag ncig nruj zuj zus hauv kuv lub teb chaws thiab nrhiav kev pom kev cuam tshuam thiab kev tiv thaiv ib puag ncig ntsuab los ntawm cov neeg siv khoom kawg ntawm ntau lub npe, ntau lub npe tau ntxiv cov ntawv sau rau lawv cov ntim tsim thiab tau txais cov qauv ntim khoom sib xyaw nrog cov ntawv tais.
Daim ntawv tais ntim khoom tsim yog tshiab thiab tshwj xeeb, uas coj cov txiaj ntsig zoo tshaj plaws rau cov tswv lag luam. Txawm li cas los xij, hauv cov txheej txheem tsim khoom, cov tuam txhab luam ntawv xim sib txawv muaj qhov sib txawv, thiab cov txheej txheem sib xyaw siv suav nrog cov khoom sib xyaw qhuav, extrusion composite, thiab hnyav-dawb composite. Qhov no kuj ua rau qee qhov teeb meem, xws li cov txheej txheem tsis ruaj khov, ntau cov khoom pov tseg, muaj ntxhiab tsw, siab hnyav residue, kub sealing foaming thiab lwm yam. Txhawm rau txhim kho qhov zoo ntawm cov ntawv ntim khoom sib xyaw, nws yog ib qho tsim nyog yuav tsum muaj kev nkag siab tob txog hom ntim no, thiab pib nrog kev siv tshuab kom tau txais ob zaug qhov txiaj ntsig nrog ib nrab ntawm kev siv zog.
