Ma valve a mtundu wa "NSEN" akhala ndi mbiri yabwino kwa nthawi yayitali mumakampaniwa.
Ma valve anu abwino kwambiri ndi omwe timawafuna.
NSEN yomwe idakhazikitsidwa mu 1983, ndi kampani yasayansi komanso yaukadaulo yomwe imapanga mavavu a gulugufe achitsulo ndi zitsulo komanso kuphatikiza chitukuko cha mavavu, kupanga, kugulitsa ndi ntchito.
Kwa zaka zoposa 30, NSEN yamanga gulu lokhazikika la akatswiri apamwamba, mwa iwo akatswiri opitilira 20 a maudindo akuluakulu ndi apakatikati akhala akugwira ntchito mu…
Ngati mukufuna kudziwa zambiri zokhudza zinthu zathu kapena mndandanda wamitengo,
Chonde tisiyeni imelo yanu ndipo tidzalumikizana nafe mkati mwa maola 24.