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 JISG 3461 Galvanized Carbon Steel Seamless Pipe For Preheating Tubes / Industrial factory

JISG 3461 Galvanized Carbon Steel Seamless Pipe For Preheating Tubes / Industrial

JISG 3461 Galvanized Carbon Steel Seamless Pipe For Preheating Tubes / Industrial Specifications: Surface Treatment: Oiling/Black painting/Varnish/Passivation/Phosphating/Pickling Ends: BE, ends caps Marking: ... Read More
2017-03-14 13:47:38
China Custom DIN 1629 Cold Drawn Seamless Tube For Pipe - Line And Mechanical factory

Custom DIN 1629 Cold Drawn Seamless Tube For Pipe - Line And Mechanical

Custom DIN 1629 Cold Drawn Seamless Tube For Pipe - Line And Mechanical Specifications: Surface Treatment: Oiling/Black painting/Varnish/Passivation/Phosphating/Pickling Ends: PE, ends caps Marking: as per ... Read More
2017-03-14 13:47:38
China Black Industrial Hydraulic Cylinder Tube , High Pressure Seamless Steel Pipe DIN2391 factory

Black Industrial Hydraulic Cylinder Tube , High Pressure Seamless Steel Pipe DIN2391

Black Industrial Hydraulic Cylinder Tube , High Pressure Seamless Steel Pipe DIN2391 Specifications: Surface Treatment: Oiling/Black painting/Varnish/Passivation/Phosphating/Pickling Ends: PE/BE, ends caps ... Read More
2017-03-14 13:47:38
China Seamless Carbon Steel Heat Exchanger Tubes OD 16mm - 90mm , Cold Drawn factory

Seamless Carbon Steel Heat Exchanger Tubes OD 16mm - 90mm , Cold Drawn

Seamless Carbon Steel Heat Exchanger Tubes OD 16mm - 90mm , Cold Drawn BS3059-1 GRADE 320 COLD DRAWN SEAMLESS TUBE FOR HEAT EXCHANGER Specifications: Production Name: COLD DRAWN CARBON STEEL SEAMLESS TUBE ... Read More
2017-03-14 13:47:38
China Standard Seamless U Bend Pipe , Cold Drawn Heat Exchanger Tubing BS3059-2 factory

Standard Seamless U Bend Pipe , Cold Drawn Heat Exchanger Tubing BS3059-2

Standard Seamless U Bend Pipe , Cold Drawn Heat Exchanger Tubing BS3059-2 U BEND PIPE BS3059-2 HEAT EXCHANGER TUBE BS3059-2 Part 2. Specification for carbon, alloy and austenitic stainless steel tubes with ... Read More
2017-03-14 13:47:38
China Carbon Steel Alloy Steel Pipe Seamless ASTM A213 / SA213 , Cold Drawn Steel Tube factory

Carbon Steel Alloy Steel Pipe Seamless ASTM A213 / SA213 , Cold Drawn Steel Tube

Carbon Steel Alloy Steel Pipe Seamless ASTM A213 / SA213 , Cold Drawn Steel Tube Specifications: Surface Treatment: Oiling/Black painting/Varnish/Passivation/Phosphating/Pickling Ends: BE/PE, ends caps Marking: ... Read More
2017-03-14 13:47:38
China Petroleum 1/8 - 26 Inch CS Seamless Pipes , Galvanized Carbon Steel Tubing factory

Petroleum 1/8 - 26 Inch CS Seamless Pipes , Galvanized Carbon Steel Tubing

Petroleum 1/8 - 26 Inch CS Seamless Pipes , Galvanized Carbon Steel Tubing Specifications: Surface Treatment: Oiling/Black painting/Varnish/Passivation/Phosphating/Pickling Ends: BE/PE, ends caps Marking: as ... Read More
2017-03-14 13:47:38
China Low Pressure Carbon Steel Seamless Tube OD 15mm - 90mm WT 1.5mm - 12mm factory

Low Pressure Carbon Steel Seamless Tube OD 15mm - 90mm WT 1.5mm - 12mm

Low Pressure Carbon Steel Seamless Tube OD 15mm - 90mm WT 1.5mm - 12mm EN10216-1 SEAMLESS CARBON STEEL HIGH PRESSURE PIPE EN10216-1 Part 1: Non-Alloy steel tubes with specified room temperature properties ... Read More
2017-03-14 13:47:38
China Carbon Steel Seamless Tube, Cold Drawn, Size 89 * 3.5 * 6000mm, bare tube factory

Carbon Steel Seamless Tube, Cold Drawn, Size 89 * 3.5 * 6000mm, bare tube

COLD DRAWN SEAMLESS CARBON STEEL TUBE FOR STRUCTURE / BOILER / PETRO-CHEMICAL / FLUID TRANSPORTATION / AUTO PARTS Specifications: Surface Treatment: Oiling/Black painting/Varnish/Passivation/Phosphating... Read More
2015-12-22 17:28:04
China Carbon Steel Seamless Tube, Cold Drawn, Size 38 * 2.5 mm, Cold Finished, bare tube factory

Carbon Steel Seamless Tube, Cold Drawn, Size 38 * 2.5 mm, Cold Finished, bare tube

CARBON STEEL SEAMLESS TUBE FOR STRUCTURE / BOILER / PETRO-CHEMICAL / FLUID TRANSPORTATION / AUTO PARTS Specifications: Surface Treatment: Oiling/Black painting/Varnish/Passivation/Phosphating/Pickling Ends: BE... Read More
2015-12-22 17:28:04
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