OPTOTRONIC GmbH
Parkring 31-33
85748 Garching bei München
(DE)
KANGXIN PARTNERS, P.C.
16A, Floor 13, Building 1-1,
A48 Zhichun Road,
Haidian District
100098 Beijing
(CN)
OSRAM GmbH
Marcel-Breuer-Straße 6
München
(DE)
Англ.Operating devices for lighting apparatus, namely ballasts.