Noble Manufacture Group specializes in making various types of steel pipe. We have good quality drill pipes, strictly according with API SPEC 5D, SPI SPEC 7,ISO9001-2000. Look forward to your inquiries soon.
Contact Person : susan ding Job Title : GM Telephone : Fax Number : Address : Mingduyuan, Huanghe 3 road, jimo qingdao. Qingdao, Shandong Fax : 0086 - 532 - 66716083 Website : Visit website