Hauv kev lag luam tshuaj niaj hnub, tshuaj, khoom noj khoom haus, thiab lwm yam, kev tsim thiab tsim cov khoom siv tsis siv neeg puv & ntim cov kab yog tsuas yog coj los ntawm cov neeg siv khoom xav tau.Tag nrho cov kab filling yog nyob ze rau cov neeg siv khoom cov txheej txheem ntau lawm, filling ceev thiab filling raug.
Kev faib tawm ntawm cov khoom nyob rau hauv ntau lub xeev: hmoov, muab tshuaj txhuam nrog tsawg viscosity thiab zoo fluidity, Muab tshuaj txhuam nrog viscosity siab thiab tsis zoo flowability, kua nrog zoo flowability, kua zoo ib yam li dej, khoom khoom.Txij li thaum lub tshuab filling yuav tsum tau rau cov khoom nyob rau hauv ntau lub xeev txawv, qhov no kuj ua rau lub uniqueness thiab uniqueness ntawm lub filling kab.Txhua txoj kab filling thiab ntim tsuas yog tsim rau cov neeg siv khoom tam sim no.