Delivery Detail: | 7 days; | ID: | 30-80mm; |
Yield strength: | 758Mpa above; | OD: | 75-280mm; |
Type: | Oil Field Equipment Parts; | Packaging Detail: | drill collar standard export package with pvc or foamed plastic paper and plywood or iron box and we can also customize according to your requirements; |
Extension strength: | 689Mpa above; | Color: | silver; |
Payment Terms: | L/C,D/A,D/P,T/T,Western Union,MoneyGram; | Certification: | API/ISO/GB; |
Length: | 9150/9450mm; | Port: | Tianjin/Qingdao/Shanghai/Guangzhou port; |
Name: | drill collar; | Supply Ability: | 20000 Piece/Pieces per Month drill collar; |
All our Drill Collars and Non-magnetic Drill Collars are manufactured in accordance with API 7-1 Standard as required by the oil and gas industry. To deter stress corrosion cracking, all of our Non-Mag material has the inter diameter treated with a shot peening operation. This compresses the inside diameter, and has been very successful in preventing stresses from forming while drilling in chloride or H2S atmospheres (sour gas) drilling environments.
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Puyang Zhongshi Group Co. Ltd, is a professional manufacturer of various pump since 1997, restructured enterprise of SINOPEC.
Our group have more than 10 years export experience and 9 subsidiary factories, more than 500 employees. We are the first-class supplier of resources market of SINOPEC and CNPC. Our foreign customers are mainly from America, Central Asia, Russia, Southeast Asia, Middle East, etc.