
Takamiya Co., Ltd.Osaka-fu, Japan

CCCC Second Harbor Engineering Bureau Co. Ltd.

Hombrechtikon Systems Engineering AGZurich, Switzerland

Anhui Jieyuan Environmental Protection Technology Co. Ltd.

Anhui Kaiyuan Highway & Bridge Co. Ltd.Anhui Sheng, China

Beijing Changdao Municipal Engineering Co. Ltd.Beijing Shi, China

Zhangjiagang Wilford Thermal Co., Ltd.

Powell Industries, Inc.Texas, United States

Jiangsu Yi'an Construction Co., Ltd.

Saferoad RRS GmbHBerlin, Germany

Schreck-Mieves GmbHNordrhein-Westfalen, Germany

Hitachi Construction Co. Ltd.