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Address:Room702,Wanbo Plaza,Younei Street,Xicheng District, Beijing City

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Fax:010-51297537-810
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E-mail:yidaxin@126.com
Up to 2015, 90% of the main oil pipeline oil, gas transmission lines of the supply of products and services were provided by our comopany;
Author: Source:   Time:2016-10-08 
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