Raw khoom zoo tswj: nruj zoo tswj ntawm raw cov ntaub ntawv yuav tsum tau thaum lub sij hawm tsim khoom kom ntseeg tau tias lawv ua tau raws li cov kev cai.
Kub thiab lub sij hawm thaum sib tov thiab vulcanization: Kub thiab lub sij hawm yuav tsum tau tswj thaum lub sij hawm sib tov thiab vulcanization kom meej sib tov thiab vulcanization ntawm roj hmab compound.
Kev Tswjhwm Zoo thaum lub sijhawm tsim khoom: Kev tshuaj xyuas thiab kev tswj xyuas zoo yog tsim nyog thaum lub sijhawm tsim khoom kom paub sai thiab daws teeb meem.
Cov teeb meem kev nyab xeeb: yuav tsum tau ceev faj txog kev nyab xeeb thaum tsim khoom kom tsis txhob muaj xwm txheej.
