All products will be made according to API and related
international standard as per customers' requirements.
Std Ref.:API 5CT and 5B ISO9001,2008
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 from
4-1/2" to 20"
4.Type: NU, EU(tubing coupling), STC,LC,BTC(casing coupling).
5.Surface treatment: Whole phosphating, or inside phosphating and
How to order?
Please send us your inquiry with detail item description or with
If there is no packing demand we take it as our regular exported
We will offer you an order form for filling. We will recommend you
the most suitable model according to information you offered.
You send ud your detail requirement, we provide quotation to you.
Can I expect a quality products?
All the production and processing are strictly according to ISO
9001:2008 and API standard. At the same time, mature production
technology ensuring the quality satisfy international request. We
also welcome the third party inspection, such as BV, SGS and TUV.
The information you may like to know before Payment:
1. Methods of Payment:
T/T (Telegraphic Transfer) or L/C at sight
2. Shipping way
Sample order: we suggest Courier express like DHL/UPS/TNT/FEDEX or
Bulk order: we suggest by air or by sea.
3. Quality Control
We have our own experienced QC.
There will be strict inspection and testing for every order before
Contact informationAttn: Leonard Wang
Mobile: 0086-15550546622 (wechat/whatsapp)