
OLKO-Maschinentechnik GmbHNordrhein-Westfalen, Germany

Beijing Construction Engineering Group Co., Ltd.

Tangshan Polar Bear Building Material Co., Ltd.Hebei Sheng, China

Atlantic China Welding Consumables, Inc.Sichuan Sheng, China

Aker Engineering & Technology AS

Hanex Co., Ltd.

China Nonferrous Metal Industry's Foreign Eng. & Constr.Beijing Shi, China

Baas BVZuid-Holland, The Netherlands

RAFAKO SASlaskie, Poland

China Construction Seventh Engineering Division Corp. Ltd.

Ichiken Co., Ltd.Tokyo, Japan

Shanghai Municipal Engineering Design Inst (Group) Co., Ltd.