Birtek teknik hirdavat - Turcija

NORELEM FRANCE

Francija – Fontaines Les Gres

MING XIAO MANUFACTURING CO., LTD

Ķīna – Ningbo

SHENZHEN PROMOSTAR HARDWARE CO.,LTD

Vācija – Meerbusch

XIAMEN NINESUN IMP. & EXP. CO., LTD

Ķīna – Xiamen

SOOCHOW ADVANCE INDUSTRIES CO., LTD.

Ķīna – Suzhou