Mitundu yotchuka ya SPD yapangidwa kuti iteteze ku TVSS
Dehn
Kuyankhulana kwa Phoenix
OBO bwino
Leutroni
Wopatsa chidwi
Siemens
Wolemba Weidmueller
ETI
Mzinda
Schneider
Mchere
Hakele
Mpeza
Zotupa
Chint - Noark
CHITH
Raycap
NVENT - ERICO
Eaton - Mkuwa - Bussmann
Chofufuzira
Clamper
Mtengo wa ICB
OTOWA
CBI
