Zhuhai Hengqin New Area Changlong Tunnel and West Ring Tunnel (enamel steel plate)
Telephone：0574-65199168 65168127
mailbox：shuoqianghuanbao@163.com
Address: No. 3, Tuanjie Road, Xiashan, Qiangjiao Town, Ninghai County, Ningbo, Zhejiang
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