API 5CT 9th 2-3/8"EU J55 Tubing Couplings

API 5CT, 5B Coupling

Material: API 5CT Seamless Steel Pipe

Usage: Well Drilling Machinery

Grade: J55, K55, N80-Q, L80-1, P110;

Size:2-3/8'-4-1/2

Packing: By carton, wooden case, wooden pallet, or by requirements of customers.
Color: green on surface and black inside thread
Supply ability: 2000pcs/month

Our tubing and casing couplings have exported to USA, Canada, Egypt, India and UEA , etc with 40 FCL contaniers per month.Now, with high quality and short supply and good service, our couplings has got good reputation home and abroad.

With over 10 years developing, we were developed from the beginning drilling service to manufacture factory who produce OCTG, DST tools and Solid Control products.

KINGWELL have experienced team, stronger enough to meet any challenge, we do believe honest is the base of business and cooperation, our aim is to build solid relationship with any part of honest. kingwell can provide highly efficient services to its clients resulting in accurate and timely deliveries at the best prices.
is a professional supplier for oilfield products according to the API standard. We exporting ALL KINDS OF OILFIELD MACHINERY AND TOOLS with super Quality and Competitive Price in CHINA.

Some ceitificates of KINGWELL as follow,









Below are specfic spec for tubing coupling as for you reference:

More technical parameters for coupling for your reference; 







Our standard packages as cartoon pallet and irony pallet as follows:
Any suggestions to improve its package will be higly appreciated .






Our Tubing Couplings cover all API Standard scope from 2-3/8"-4-1/2" with strickly inspection, which all the goods should be checked one by one before packing.  

A well-established Quality System from Materials receipt to Products delivery ensures consistent quality at all levels of the activity. QMS Procedures & Measurements are tailored to establish high standards of Quality Assurance in the Operations. The Company maintains the 100% Traceability records as per API requirements&NACE MR 0175-2002 Standards and complies with all the legal, statutory and regulatory requirements.  




Technical process as follows for you reference,

About delivery:

Generally, machines are in stock, warehouse machine need 3 days delivery for paint and package, tell us: what colors u need. If every material is ready, 10 days finish the goods.

If material is not ready,30 days to delivery. Because we still have other order to do at the same time.

And we will sign 45 days in agreement; delivery time is usually in advance

About Logo:KW, we can produce according to customer requirements.

About Quality: All the products with API, low price are not -API, cannot be exported.

About Warranty: Warranty period is 1 year after installation.

About Payment: 30% of the advance payments, delivery time, please pay 70%.

About Ttechnical Documents:I submit the following accompanying technical information in English,

A: Test Report in accordance with the appropriate API or national test standards outline
B. Commerial Invoice

C: Original copy of quality certificate

D: Packing List

E: The chemical element ,Mechanical properties.

About Service:

We believe in Customer delight, achieved by the supply of Quality Products & Services and Continual Improvement in our Manufacturing Processes for timely delivery at competitive prices. We work in a professional, competitive, and cost-effective manner consistent with the Customer requirement.

Kindly let me know if you have any interest or enquiry about ourproducts. You are also always welcomed to come to our factory for a visit at your convinent time.

We will offer you a good price and show you our best service.