As the only Coupling Spot Supermarket in China, we always keep 100,000 coupling in our warehouse.
We also have our own seamless pipe mill to produce coupling stock.
No matter how less you need, no matter how unusual you need, RICHSEN resolve it for you.
Coupling is Internally threaded steel cylinder for joining two lengths of threaded Casing pipe or Tubing pipe.
API-5CT Oil Country Tubular Goods include Seamless Casing and Tubing Pipes which used in Petroleum pipeline system.
TIANJIN RICHSEN is a Coupling and OCTG comprehensive solution provider based on China serving global market.
we offer integral solution ranging of Procurement, Marketing, Information, Research and Development, Producing, Processing, Logistics.
Oil Coupling is our core product, we dedicated to create the biggest coupling spot supermarket serve clients all over the world.
Welcome to visit RICHSEN
RICHSEN Successfully Particpate OTC-2019 in Houston, TX, USRICHSEN Team has successfully participated OTC-2019 in Houston, TX, US on 06-09 May 2019.View More
RICHSEN will attend OTC-2019 at the bigining of May, 2019. we warmly welcome you to visit us.View More
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