4-1/2 J55 EUE Tubing Coupling

Coupling are important accessories for tubing and casing pipes. We are committed to OCTG for many years,each coupling passes phosphating, Magnetic P.I,Threading Check,and the quality of each coupling is guaranteed.
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Product Details

Company Information
tubing coupling.jpg

TIANJIN DALIPU OIL COUNTRY TUBULAR GOODS CO.,LTD is a modern professional industry and trade combined enterprise, specializing in producing and trading seamless steel pipes.

The main products of our company are the oil casings and oil pipelines. We not only supply our goods with many large oil fields, but also establish a long-term business relationship with the Middle East Europe, Africa and other countries around the world and co-operative very well.

Product Description

Std Ref.:API 5CT and 5B ISO9001

1.Grade:J55, K55, N80-1, N80-Q, L80, C90, P110

2.We also supply permium thread products by customer's request

3.Size: tubing coupling from 1.9" to 4-1/2",Casing coupling from4-1/2"to 13-3/8"

4.Type: NU, EU(tubing coupling), STC,LTC,BTC(casing coupling). 

5.Surface treatment: Whole phosphating, or inside phosphating and outside coating

6.Packing: By carton, wooden case, wooden pallet, or by  requirements of customers

Our company manufactures and sells casing and tubing couplings,pup joints, crossover,13cr pipe, etc. We always do business based on the principle of equality and mutual benefit, we provide the high quality and competitive price products.

If you are interested in anyone of them please contact us as soon as possible

Product show

tubing coupling


beveled coupling


casing tubing


J55 coupling





Production Flow Chart

production flow chart

Product Package



wooden case


wooden pallet


Q1:  How long is your delivery time?
        According to the quantity of per size.Generally it is with 7 days if the goods are in stock,or it is 15-20 days if the goods are not in stock.


Q2: Do you provide samples ? is it free or extra ?
       Yes, we could offer the sample for free charge but do not pay the cost of freight.


Q3: What is your terms of payment ?
       30% T/T in advance ,balance before shippment.

Hot Tags: 4-1/2 j55 eue tubing coupling, China, manufacturers, factory, in stock


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