CHANGZHOU RUIYUAN STEEL TUBE CO., LTD.

 

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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 High Pressure Round Mild Steel Tube Wall Thickness 2.2mm - 25.4mm factory

High Pressure Round Mild Steel Tube Wall Thickness 2.2mm - 25.4mm

High Pressure Round Mild Steel Tube Wall Thickness 2.2mm - 25.4mm SPECIFICATIONS: Surface Treatment: Oiling/Black painting/Varnish/Passivation/Phosphating Ends: BE/PE, ends caps Marking: as per requirement ... Read More
2017-03-14 13:47:38
China Threaded Standard DIN17175 Round Black Mild Steel Seamless Pipe Length 6 - 16m factory

Threaded Standard DIN17175 Round Black Mild Steel Seamless Pipe Length 6 - 16m

Threaded Standard DIN17175 Round Black Mild Steel Seamless Pipe Length 6 - 16m SEAMLESS STEEL PIPE DIN17175 OF HEAT-RESISTANT STEELS Part 1: Specification for low tensile carbon steel tubes without specified ... Read More
2017-03-14 13:47:38
China Hot Roll Carbon Steel Seamless Pipe EN10216-1 , Black Painting / Varnish Steel Tube factory

Hot Roll Carbon Steel Seamless Pipe EN10216-1 , Black Painting / Varnish Steel Tube

Hot Roll Carbon Steel Seamless Pipe EN10216-1 , Black Painting / Varnish Steel Tube EN10216-1 SEAMLESS STEEL TUBE (TR1/TR2) FOR PRESSURE PURPOSES Part 1: Non-Alloy steel tubes with specified room temperature ... Read More
2017-03-14 13:47:38
China Thin Wall Carbon Steel High Pressure Steel Pipe Seamless , Cold Drawn Water And Fuel Pipe factory

Thin Wall Carbon Steel High Pressure Steel Pipe Seamless , Cold Drawn Water And Fuel Pipe

Thin Wall Carbon Steel High Pressure Steel Pipe Seamless , Cold Drawn Water And Fuel Pipe Specifications: ASTM A53/A53M(ASME SA53/53M) Seamless Steel Tubes Steel Grade: A/B Surface Treatment: Oiling/Black ... Read More
2017-03-14 13:47:38
China 1/8 - 4 Inch Carbon Steel Seamless Pipe Standard ASTM A333 , Low Temperature factory

1/8 - 4 Inch Carbon Steel Seamless Pipe Standard ASTM A333 , Low Temperature

1/8 - 4 Inch Carbon Steel Seamless Pipe Standard ASTM A333 , Low Temperature 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 Round Seamless Thick Wall Steel Tube , Heavy Wall Pipe ASTM A53 A106 factory

Round Seamless Thick Wall Steel Tube , Heavy Wall Pipe ASTM A53 A106

Round Seamless Thick Wall Steel Tube , Heavy Wall Pipe ASTM A53 A106 Specifications: ASTM A53/A53M(ASME SA53/53M) Seamless Steel Tubes Steel Grade: A/B Surface Treatment: Oiling/Black painting/Varnish... Read More
2017-03-14 13:47:38
China Black Painting Carbon Steel Seamless Tube Wall Thickness 1.5-12mm For Mechanical factory

Black Painting Carbon Steel Seamless Tube Wall Thickness 1.5-12mm For Mechanical

Black Painting Carbon Steel Seamless Tube Wall Thickness 1.5-12mm For Mechanical GOST 8734-75 SEAMLESS COLD-FORMED STEEL TUBES Specifications: Surface Treatment: Oiling/Black painting/Varnish/Passivation... Read More
2017-03-14 13:47:38
China Structural Thick / Heavy Wall Steel Tube , Alloy Steel Seamless Pipe For Bending / Flanging factory

Structural Thick / Heavy Wall Steel Tube , Alloy Steel Seamless Pipe For Bending / Flanging

Structural Thick / Heavy Wall Steel Tube , Alloy Steel Seamless Pipe For Bending / Flanging Specifications: Surface Treatment: Oiling/Black painting/Varnish/Passivation/Phosphating/Pickling Ends: BE/PE, ends ... Read More
2017-03-14 13:47:38
China Heat Resistant Cold Worked Seamless Steel Tubes / Mechanical Pipe OD 5 - 250mm factory

Heat Resistant Cold Worked Seamless Steel Tubes / Mechanical Pipe OD 5 - 250mm

GOST 8734-75 Cold Worked Seamless Steel Tubes / Mechanical Pipe OD 5 - 250mm GOST 8734-75 SEAMLESS COLD-FORMED STEEL PIPES Specifications: Surface Treatment: Oiling/Black painting/Varnish/Passivation/Phosphatin... Read More
2017-03-14 13:47:38
China DIN17175 ST35.8 / ST45.8 seamless carbon steel tube / cs seamless pipe for Boiler Construction factory

DIN17175 ST35.8 / ST45.8 seamless carbon steel tube / cs seamless pipe for Boiler Construction

DIN17175 ST35.8 / ST45.8 seamless carbon steel tube / cs seamless pipe for Boiler Construction BOILER TUBE DIN17175 SEAMLESS TUBES OF HEAT-RESISTANT STEELS Part 1: Specification for low tensile carbon steel ... Read More
2017-03-14 13:47:38
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