Niaj hnub no peb yogmeej momlos ntawm kev mus ntsib cov kws tshuaj ntsuam xyuas los ntawm lub tuam txhab fais fab hauv tebchaws Afghanistan- Da Afghanistan Breshna Sherkat (DABS)los ua pov thawj kev ntsuam xyuas ntawm ntau polymeric insulators rau kis kab.
