Yida Special Steel Group Ltd. Corp. | Address: P. O. Box 680252, Houston, Texas 77268, USA 
www.yidadrillcollar.com | Send Inquiry | Phone: +1-(713)-834-4413
Shanxi Yida Special Steel Group Co., Ltd. specializes in steel manufacturing and processing. We are an ISO 9001:2000 certified company. Our products include non-magnetic bars, bored bars, drill collar more...

Shaanxi Senwell Drilling Equipment Co., Ltd.. | Address: Rm. 0802, Block 3, Changfeng Park, Xisanyao Village, Yanta District, Xian, Shaanxi, China 
www.oiltoolsdp.com | Send Inquiry | Phone: +86-(29)-85370919
Shaanxi Senwell Drilling Equipment Co., Ltd. offers petroleum mechanical equipment and oilfield equipment. Our drill pipe is used as the major part of drill stem. Our unbalanced spiral blade stabilize more...