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China Puyang Zhongshi Group Co., Ltd. certification
China Puyang Zhongshi Group Co., Ltd. certification
Recommendation is good. Reception is professional. Demo training is also very great. Wish more online training after getting the machine.2017.8.26

—— David

Thanks for your kindly hospitality. Your company is very professional , we will have nice cooperation in the near future. 2015.6.28

—— Sergey

Good company with nice service and high quality and high reputation. One of our reliable supplier , goods are delivered in time and nice package 2016.3.25

—— Steve

Thanks for your good after-sale service. Excellent training and technology support helps me a lot. 2018.4.23

—— Mostafa

Professional, very helpful, great price. Will use again for other items 2019.2.21

—— Ahmed

Thanks for zhongshi group supporting and guidence. With your help and instruction, I win more market share. 2017.9.26

—— Manuel

Nice cooperation with zhongshi group.Imperssive for your service and support. 2018.3.18

—— Luis

We are satisfied with your product's quality. We highly appreciate to see the excellent performances in production capacity and thanks for the specialist technical support from you 2018.11.16

—— Mohammed

Good company with professional service and high quality. Delivered in time. Our most trusted partner for sucker rod and OCTG pipe. 2018.7.24

—— Nicolas

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china latest news about About downhole sucker-rod pumps

About downhole sucker-rod pumps

[2021-02-20 11:50:37]
Pump components There are seven major components for downhole rod pumps: standing and traveling valves, plunger, barrel, seating assembly, pull tube or valve rod (for insert pump), and the fittings that hold the assembled pump together. The most common of these components and the final types of ... Read More
china latest news about How Does Artificial Lift Work?

How Does Artificial Lift Work?

[2020-10-21 14:45:55]
How Does Artificial Lift Work? Artificial lift is a process used on oil wells to increase pressure within the reservoir and encourage oil to the surface. When the natural drive energy of the reservoir is not strong enough to push the oil to the surface, artificial lift is employed to recover more ... Read More
china latest news about VALVE BALL AND SEAT


[2020-09-18 14:05:51]
VALVE BALL AND SEAT The valve ball and seat is a important part of the oil field mining pump, its using directly decides the service life of pump.According to the corrosion characteristics of oil, oil Wells can provide different material We provide different material and structure of the valve cage ... Read More
china latest news about Cementing head

Cementing head

[2020-09-03 15:26:38]
Cementing head Cementing head is a device installed on the top of casing during cementing. During cementing operations, a cement plug for cementing is pre-placed in the cement head, including an upper plug and a lower plug. Put in the lower plug before injecting the cement slurry, and then put the ... Read More
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