1. Lub plasticity ntawm tsob ntoo dag muaj zog. Nws yog tsim los ntawm cov nroj tsuag ntsuab thiab ib puag ncig zoo li cov khoom siv raw, feem ntau yog cov khoom yas, cov khoom siv lo lo ntxhuav, cov khoom siv polyester, resin av nplaum cement, thiab lwm yam. Tsis tas li ntawd, hlau rods, iav raj, tshuab ntawv, fibers kuj siv. Txhob lo lo ntxhuav, daim ntawv dai kom zoo nkauj, thiab ribbons yog txhua yam tsis muaj kuab lom los yog tsawg heev. Vim yog lub siab elasticity ntawm cov khoom, nws tuaj yeem ua ke nrog cov qauv ntawm qhov siab tshwj xeeb thiab cov duab thiab tuaj yeem ua kom ntsuab thiab tawg los ntawm cov kev txwv ntawm cov khoom tiag. Cov duab yog vivid thiab cus ciav, uas yog piv rau cov cog paj thiab cov nroj tsuag.
2. Cov ntoo dag tsis tshua muaj kev cuam tshuam los ntawm ib puag ncig. Niaj hnub no, feem ntau ntawm cov chaw pej xeem thiab chaw ua haujlwm yog cua txias. Lub teeb sab hauv tsev feem ntau tsis txaus. Yog li ntawd, nws tsis yooj yim rau kev loj hlob ib tsob ntoo hauv tsev, tab sis cov nroj tsuag dag tuaj yeem ua tiav lub hom phiaj no. Cov xim tuaj yeem khaws cia rau lub sijhawm ntev, thiab plaub lub caij yog tib yam. Nws yuav tsis lwj thiab qhuav li cov paj thiab cov nroj tsuag cog.
3. Kev saib xyuas ntawm tsob ntoo dag yog yooj yim. Cov ceg thiab nplooj ntawm cov nroj tsuag dag feem ntau tsis pwm, tsis lwj, tsis tas yuav tsum tau watered, tsis txhob yug yoov tshaj cum thiab yoov. Tsis muaj kev phiv los ntawm cov menyuam yaus thaum noj tshuaj. Qhov no yog qhov tsim nyog rau cov tsev neeg uas muaj menyuam yaus thiab cov neeg laus thiab cov khub niam txiv ua haujlwm
4. Tus nqi ntawm cov nroj tsuag feem ntau tsis siab, thiab qee qhov qis dua cov paj tiag tiag thiab cov nyom tiag tiag. Nws yog qhov yooj yim rau kev thauj thiab nqa tau yooj yim. Thaum tus qauv tsim yuav tsum tau hloov pauv, nws tuaj yeem sib xyaw ua ke thiab sib xyaw kom hloov cov huab cua sib txawv. Nws yog qhov tsim nyog rau kev tsim vaj tsev loj hauv tsev thiab ua kom ntev.