reverse circulation

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[CN] Cangzhou Great Drill Bits Co.,Ltd. [Manufacturer]
Key Products/Services:
Business Overview: Cangzhou Great Drill Bits Co. Ltd., founded in 2010, speciallized in processing research of steel and diamond materials, is involved in the R&D, design, pro...

150USD-10000USD

[CN] MAXDRILL ROCK TOOLS CO.,LTD [Manufacturer]
Key Products/Services:
Business Overview: Maxdrill Rock Tools Company is a professional drilling tools manufacturer and supplier based in China. We provide a wide variety of drilling tools and ancho...

[CN] Tianjin Dalipu Oil Country Tubular Goods Co., Ltd [Trading Company]
Key Products/Services:
Business Overview: TIANJIN DALIPU OIL COUNTRY TUBULAR GOODS CO.,LTD is a modern professional industry and trade combined enterprise, specializing in producing and trading seam...

USD500

[CN] Shandong Dahang Petroleum Engineering Co., Ltd. [Manufacturer]
Key Products/Services:
Business Overview: The company was first established in June, 2006 ,and reorganized as Shandong Dahang Petroleum Engineering Co., Ltd..It is a professional company specializin...