CHANGZHOU RUIYUAN STEEL TUBE CO., LTD.

 

We are leading manufacturer of CDS and HFS pipes and Tubes.

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seamless black steel pipe

Good quality Seamless Boiler Tubes for sales
Good quality Seamless Boiler Tubes for sales
RUIYUAN is a reliable supplier, we trust in them and already cooperated for 5 years. They offer good and stable quality, best service and price.

—— Mr.Wang from SINOPEC

As we've cooperated more than 7 years, RUIYUAN is not only a business partner, but also became a very best friend for us.

—— Mr.Sanjay Bajaj

They will always keep their words, and always put customer's benefit on first consideration, that's why we chose them as a long-term business partner!

—— Mr.Thomas BIttig

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seamless black steel pipe

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China DIN 17175 Grade Seamless Heat Exchange Tube and Heat - Resistant Steel Tubes factory

DIN 17175 Grade Seamless Heat Exchange Tube and Heat - Resistant Steel Tubes

DIN 17175 Grade Seamless Heat Exchange Tube and Heat - Resistant Steel Tubes DIN17175 SEAMLESS TUBES OF HEAT-RESISTANT STEELS, HEAT EXCHANGER TUBES Part 1: Specification for low tensile carbon steel tubes ... Read More
2017-03-14 13:47:38
China DIN1629 Non - Alloy Seamless Steel Round Heat Exchanger Piping factory

DIN1629 Non - Alloy Seamless Steel Round Heat Exchanger Piping

DIN1629 Non - Alloy Seamless Steel Round Heat Exchanger Piping DIN1629 SEAMLESS CIRCULAR UNALLOYED HEAT EXCHANGER STEEL TUBES WITH SPECIAL REQUIREMENTS Specifications: Surface Treatment: Oiling/Black painting... Read More
2017-03-14 13:47:38
China Seamless Steel Round Piping factory

Seamless Steel Round Piping

DIN1629 Non - Alloy Seamless Steel Round Heat Exchanger Piping DIN1629 SEAMLESS CIRCULAR UNALLOYED HEAT EXCHANGER STEEL TUBES WITH SPECIAL REQUIREMENTS Specifications: Surface Treatment: Oiling/Black painting... Read More
2015-11-11 15:50:09
China Carbon Steel Seamless Tube for Petro-Chemical Equipments, size 25*2.5mm/16*2mm, factory

Carbon Steel Seamless Tube for Petro-Chemical Equipments, size 25*2.5mm/16*2mm,

Carbon Steel Seamless Tube for Petro-Chemical Equipments Specifications: Surface Treatment: Oiling/Black painting/Varnish/Passivation/Phosphating/Pickling Ends: BE/PE, ends caps Marking: as per requirement ... Read More
2017-03-11 14:14:30
China Small Diameter Heat Exchanger Tube , Carbon Steel Seamless Pipe, Cold Drawn factory

Small Diameter Heat Exchanger Tube , Carbon Steel Seamless Pipe, Cold Drawn

Small Diameter Heat Exchanger Tube , Carbon Steel Seamless Pipe BS3059-2 HEAT EXCHANGER TUBE BS3059-2 Part 2. Specification for carbon, alloy and austenitic stainless steel tubes with specified elevated ... Read More
2017-03-14 13:47:38
China Seamless Heat Exchanger Tubes with 1mm - 12mm Wall Thickness for Boiler factory

Seamless Heat Exchanger Tubes with 1mm - 12mm Wall Thickness for Boiler

Seamless Heat Exchanger Tubes with 1mm - 12mm Wall Thickness for Boiler, BS3059 Specifications: Surface Treatment: Oiling/Black painting/Varnish/Passivation/Phosphating/Pickling Ends: PE, ends caps Marking: as ... Read More
2017-03-14 13:47:38
China Thin Wall Cold Drawn Seamless Tube Carbon Steel With OD 16mm - 90mm , Heat Resistant factory

Thin Wall Cold Drawn Seamless Tube Carbon Steel With OD 16mm - 90mm , Heat Resistant

Thin Wall Cold Drawn Seamless Tube Carbon Steel With OD 16mm - 90mm , Heat Resistant Specifications: Production Name: COLD DRAWN CARBON STEEL SEAMLESS TUBE Surface Treatment: Oiling/Black painting/Varnish... Read More
2017-03-14 13:47:38
China Seamless Heat Exchanger Tubes factory

Seamless Heat Exchanger Tubes

Welded Seamless Heat Exchanger Tubes 1mm - 12mm Wall Thickness In Boiler Specifications: Surface Treatment: Oiling/Black painting/Varnish/Passivation/Phosphating/Pickling Ends: PE, ends caps Marking: as per ... Read More
2015-11-11 15:50:10
China Low Tensile Carbon Steel Seamless Boiler Tubes BS3059-1 Grade 320 OD 12 - 127mm factory

Low Tensile Carbon Steel Seamless Boiler Tubes BS3059-1 Grade 320 OD 12 - 127mm

Low Tensile Carbon Steel Seamless Boiler Tubes BS3059-1 Grade 320 OD 12 - 127mm BS3059-1 STEEL BOILER AND SUPERHEATER TUBES Part 1: Specification for low tensile carbon steel tubes without specified elevated ... Read More
2017-03-14 13:47:38
China Heat Resisting Steel Seamless Boiler Tubes , Round Seamless Mechanical Tubing factory

Heat Resisting Steel Seamless Boiler Tubes , Round Seamless Mechanical Tubing

Heat Resisting Steel Seamless Boiler Tubes , Round Seamless Mechanical Tubing BS3059-2 STEEL BOILER AND SUPERHEATER TUBES Part 2. Specification for carbon, alloy and austenitic stainless steel tubes with ... Read More
2017-03-14 13:47:38
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