Tenaris global services uk - Det Forenede Kongerige

NORELEM FRANCE

Frankrig – Fontaines Les Gres

MING XIAO MANUFACTURING CO., LTD

Kina – Ningbo

SHENZHEN PROMOSTAR HARDWARE CO.,LTD

Tyskland – Meerbusch

XIAMEN NINESUN IMP. & EXP. CO., LTD

Kina – Xiamen

SOOCHOW ADVANCE INDUSTRIES CO., LTD.

Kina – Suzhou