API 5DP DSTJ XT 39 type Drill pipe for 5-1/2" IEU Grade S135

API 5DP DSTJ XT 39 type Drill pipe for 5-1/2" IEU Grade S135

Heat Treatment of Puyang Zhongshi drill collar adopts unique medium frequency inductance heating method for hardening and tempering,during which steel parts rotate continuously to get even heating.In the course of hardening,it adopts anular internal and external injection water cooling method to get even and high strength.Drilling collar material after whole length heat treatment could guarantee 285-341 Brinell hardness 1” below the surface of the pipe body.

  Puyang Zhongshi drill collar includes open faced,spiral groove,square,lopsided and pipe slips,elevator groove,wearing ring drill collar.The length of the drill collar could be 10 feet to 30 feet with 3-1/20’’ to 11” external diameter.Data information of common size refers to diagram.

Puyang Zhongshi Group Co.,Ltd. is a formal reformation enterprise from Zhongshi Oil Field a modernized corporation integrated science, industry and trade, it belongs to Hi & New Tech Enterprise of Henan Province and Sci-Tech Enterprise. The group not only deals in exporting of machinery for petroleum drilling and mining machinery, but also importing and exporting following products: special equipment for petroleum and petrochemical, electronic instruments, various kinds of furniture and crafts & arts products, steels, plating armor plates, non-ferrous metal, construction materials, petrochemical products, dopes and oil paint, etc.Zhongshi Group has passed ISO9001 International Quality Certification, and its primary Petroleum Machinery Products such as pumping unit, subsurface oil pump, sucker rod and wellhead have been certified by American Petroleum Institute. Among these products, fifteen of them gain national patent. The Group is granted AAA credit rate enterprise by Industrial & Commercial Bank of China, and a member of Sinopec Corporation Materials Resources Market. 

Puyang Zhongshi Group Co.,Ltd. is a professional manufacturer of various oilfield equipment and cementing accessories since 1997, restructured enterprise of SINOPEC. We have the certificatesof API-5CT, API-10D, API-11E, API-6A, API-11AX, ISO9001:2008, ISO14001:2004 etc. and 15 of products have gained national patents .We are the first-class supplier of resources market of SINOPEC and CNPC. Domestic:our products are widely used in power plants, coal mines, cement factories, fertilizer plants, petroleum industry, machinery industry, steel mills and other industries. Overseas:our main customers come from America,Russia,Vietnam,Middle East,Southeast Asia,Central Asia and Sudan,Yemen, Egypt etc.African countries .

Our company is willing to cooperate and make common progress with friends at home and abroad with first-calss products, first-class service and reasonable prices.

 All products purchased in our company are guaranteed to keep in good repair for one year. If quality problems happen in guarantee period, our company will maintain for free. Additionally, our company provides technical support and fittings for life. After-sales service isn't restricted by time and we will assign technical personnel to solve your problems immediately after receiving telephone and hear feedback idea of users and deal with them in time. If you are caught in some problems when using our products, welcome to contact us at any time.

1. Q: Can I get drill collar samples? 
A: We are honored to offer you samples for quality check.

2. Q: Do you have the products of drill collar in stock?

A : No. All bikes are to be produced according to your order including samples.

3. Q: What’s the delivery time?

A: It usually takes about 25 working days to produce an order from MOQ to 40HQ container. But the exact delivery time might be different for different orders or at different time.

4. Q: Can I mix different models of  drill pipes in one container?

 A: Yes, different models can be mixed in one container, but the quantity of each model should not be less than MOQ.

5. Q: How does your factory do regarding quality control? 
A: Quality is priority. Highper People always attach great importance to quality control from the very beginning to the end of the production.  Every product will be fully assembled and carefully tested before it's packed for shipment.

6. Q:What's your warranty terms? 
A:  We offer different warranty time for different products. Please contact with us for detailed warranty terms.

7. Q: Will you deliver the right goods as ordered? How can I trust you?

 A: Yes, we will. Zhongshi Group is belongs to Hi&New Tech Enterprise of Henan Province and Sci-Tech Enterprise, which have more than 10 years exporting experience. So the Zhongshi Group can be your sincerely partners.The core of our company culture is honesty and credit. Highper has been alibaba’s Gold supplier . If you check with alibaba, you will see that we have never got any complaint from our customers.

Puyang Zhongshi Group Co., Ltd.

Aaron

Add: 5th District, Zhongyuan Oi-field, Puyang City, Henan Provice

mobilephone number: 0086 189 3767 4319

Whatsapp:+86 189 3767 4319

Skype:aaronmark1986

Tel: 0086-371-55682773

website:www.cn-zsm.com