Shandong Dongbao Group including three subsidary companies Shandong Dongbao Steel Pipe Co., Ltd, Dongbao Petroleum Machinary Co.,Ltd and Dongbao internatinal trade co.,Ltd.We are engaged in producing various steel pipes tubing、coupling and Nanoscale Titanlum-containing Compound Coated Tubing (NTCCT),casing, drilling pipe and oil pumps with automatic production flow lines, one of which is Φ60mm--180mm, and the other is Φ180mm--340mm. The...
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