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Product Description:

Oil casing specification 

Standard : 




Outside diameter

114.3-339.7MM   4 1/2''-20''


5.69-12.19MM   0.205-0.635''


R2 or R3


L/C or T/T 30% or 100% Irrevocable LC at sight


hot rolling 


Standard export bundles or as customer's required

casing standard

Having   the  API-5CT official monogram


we can find third party to inspect the goods.e.g SGS



Delivery time 

30-45days  after the receipt of L/C


Oil & gas fields 

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Q:Energy consumption classification of electronic products in China
At present, more than and 100 countries have implemented energy efficiency labeling system. For the blue and white background color identification, divided into 1, 2, 3, 4, 5 a total of 5 grades,Level 1 indicates that the product has reached the international advanced level, the most energy saving, the lowest energy consumption;
Q:At present, what are the main types of new energy vehicles?
Pure electric vehicles (BEV, including solar cars):Is the main power to drive the car, at present, most of the models is directly driven by the motor, a part of the motor vehicle mounted in the engine compartment, there is also a part of the rotor four motors directly to the wheels as, and the difficulty of power storage technology.
Q:What is the difference between energy star and DLC
TUV authorized testing laboratoryThe government finds that the public service platform of small and medium-sized enterprise product testingChina, Hongkong, Australia and other lamps energy efficiency accreditation record LaboratoryLED lamps can provide a comprehensive test items: light distribution curve, UV value, light intensity spatial distribution, illumination, LM-80 lumen maintenance rate test
Q:Types of energy market in China
Energy is the material basis of human activities. In a sense, the development of human society is inseparable from the emergence of high-quality energy and the use of advanced energy technologies. In today's world, the development of energy, energy and the environment, is the world, the whole human concern, but also an important issue of China's social and economic development.
Q:What is the C type of the product type in the notebook computer?
A class of products such as high priced cars, real estate, etc. must have a certain psychological cognitive process,
Q:What is the difference between primary and secondary energy sources two
An energy is taken directly from nature without a variety of energy and resources, processing including coal, crude oil, natural gas, oil shale, nuclear, solar, hydro, wind, wave energy, tidal energy, geothermal energy, biomass energy and ocean thermal energy and so on.
Q:New energy technology applications, including the professional
5 power electronics, a variety of new energy products are used to develop;6 the construction of the building, the need for various engineering structural design personnel.
Q:How to solve the energy problem
Actively play the basic role of the market in resource allocation, increase the energy development investment, increase energy supply, and play the role of national macro-control, coordination of energy development in China, to increase the energy development policy support, to ensure the stable and rapid development of China's energy production.
Q:There are several forms of energyWhat are they called? What is the use?
They become the basis of global energy; in addition, solar energy, wind energy, geothermal energy, ocean energy, biomass energy, nuclear energy and other renewable energy is also included in the scope of primary energy; two energy refers to the primary energy directly or indirectly into other types and forms of energy resources, for example electric power, gas, gasoline, diesel, coke, clean coal, gas and other energy laser and belong to two energy.
Q:Definition of low carbon energy
All of these need to implement low-carbon industrial system in Western europe. It includes thermal power emission reduction, new energy vehicles, building energy efficiency, industrial energy conservation and emission reduction, recycling economy, recycling of resources, environmental protection equipment, energy-saving materials, etc.. We are now in an important period of economic transformation.

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