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DONGYING DAYANG PETROLEUM EQUIPMENT CO., LTD
DONGYING DAYANG PETROLEUM EQUIPMENT CO., LTD ia a modernized industry, conbined manufacturing and development of seamless steel pipes drilling equipment, tools, ***** in 1983。we have devoting supplying oilfield products for twenty years. The specifications oil are as ...
Telephone：86-546-7706001Address：Beiyi Road,No.287, Dongying, Shandong, China
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