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OPR Ningbo Plant: Ningbo OPR Ocean Engineering Equipment Co., Ltd. 
Add: No. 188, Binwan Road, Binhai New Area, Fenghua District, Ningbo, China 
Tel: 0574-88734261
Fax: 0574-59515527
Homepage:www.oprpipe.com
Email:service@opr-inc.cn

OPR Headquaters: Hangzhou OPR Offshore Engineering Co., Ltd. 
Add.: 5th Floor, Building 5, China Artificial Intelligence Town, 1818-2 Wenyi West Road, Yuhang District, Hangzhou, Zhejiang, China 
Tel: +86 571 8860 6550
Fax: +86 571 8860 6550
Homepage:www.opr-inc.cn
Email:service@opr-inc.cn