Txheej txheem kev kho mob ua ntej sealing iav sealing txheej txheem ntawm hluav taws xob cua sov raj

(1) Txiav cov hmoov magnesium oxide ntawm ob qho kawg ntawm lub raj cua sov kom tob txog li 8 hli.

(2) Ntxuav lub puab nto ntawm lub raj thiab cov pas nrig tsis muaj MgO hmoov thiab av.

(3) Muab cov khoom siv hluav taws xob tau hais los saum toj no rau hauv qhov cub ntawm 200 degree kom tshem tawm cov dej noo, kom cov rwb thaiv tsev tiv thaiv ntau dua 10kMΩ.