5, Beijing, Beijing, China

Tianjin Selte Petroleum Drilling Toosl Co.,Ltd is the subsidiary of Tianjin Zhengdong Group Investment Group, the previous Tianjin Zhengdong Petroleum Drilling Tools Co.,Ltd, was founded in 2004 with ...

Beijing Zeao Investment and Mangement Co.; Ltd LLC (Limited Liability Corp) started off as a leading Manufacturer and Exporter of Standard Drilling Oil. Since inception, our production facility has ma...

casing tubing drillpipe linepipe...

Taipingli Residential Area, Xuanwu District,Beijing Beijing Beijing China

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