Spanish cov neeg siv khoom thiab cov neeg ua haujlwm nrog tuaj rau peb lub tuam txhab los tham txog kev yuav khoom ntawm Disc ncua kev kawm ntawv porcelain insulators.Cov neeg muas zaub thawj zaug tuaj xyuas peb lub rooj cob qhia ntau lawm.Thawj Tswj Hwm Liu Yunhua tau qhia tag nrho cov txheej txheem tsim khoom ntawm Disc ncua kev kawm porcelain insulators thiab qhia tias peb lub tuam txhab yuav ua ntau yam kev ntsuam xyuas ntawm cov khoom los xyuas kom meej qhov zoo.Cov neeg siv khoom txaus siab heev, ncav cuag tus nqi pom zoo nrog peb lub tuam txhab, thiab sib tham txog cov khoom xa tuaj tom qab.
Post lub sij hawm: Sep-05-2021