
Handan Zhengda Pipe Manufacturing Co., Ltd.

Yuayo Tirrit Co. Ltd.

Mitsubishi Steel Muroran, Inc.

Zhejiang Brother Guidepost Paint Co. Ltd.

New Bright Industrial Co. Ltd.Michigan, United States

Xiamen Liangzhou Chemical Machinery Co., Ltd.

Qingdao Haiyuan Industrial Co. Ltd.

Guangzhou Xinao Gas Co. Ltd.

Fujian Times Nebula Technology Co., Ltd.

Zunyi Fenghua Electromechanical Parts Co. Ltd.

Jotun Limited

Huzhou Renxin Bearing Steel Pipe Co. Ltd.