
Qingdao HaiGao Design & Manufacturing Co. Ltd.

Tengda Construction Group Co., Ltd.Zhejiang Sheng, China

Shanghai Shenjie Environment Protection Sci & Tech Co., Ltd.Shanghai, China

China Sinogy Electric Engineering Co., Ltd.

Tangshan Construction Group Co. Ltd.

Western Technologies, Inc.Arizona, United States

China Railway Siyuan Survey & Design Group Co., Ltd.

Movares Nederland BVUtrecht, Netherlands

Saint-Gobain Placo Ibérica SA

Sanplast Sp zoo

Jinan Ludong Refractory Co. Ltd.Shandong Sheng, China

Zhejiang OMEX Environmental Engineering Co., Ltd.