CHANGZHOU RUIYUAN STEEL TUBE COMPANY
All Products
- OD 10.5 - 660.4mm Carbon Steel Seamless Pipe For Pressure Service JIS G 3454
- Bare and Oil Carbon Steel Seamless Pipe with Chemical and Mechanical Test
- JISG 3461 Carbon Cold Drawn Seamless Steel Tube for Preheating , Boiler Tubes
- DIN Cold Drawn Precision Steel Pipe Seamless for structure , auto , hydraulic 6 - 16m
- DIN1629 Non - Alloy Steel Round Pipe , Carbon Steel Seamless Tube for Chemical Equipment
- Precision Hydraulic Mechanical Carbon Steel Seamless Pipe OD 6 - 350mm WT 0.8 - 35mm
- ASTM A210 GRADE A - 1 / C cold drawn Seamless Boiler Tubes with Phosphating / Pickling
- JIS G 3462 Oiling / Black / Varnish Alloy Steel Pipe OD 12.7 - 127mm WT 0.4 - 12.7mm
- ASTM A106 Grade A / B / C Hydraulic Cylinder Tubing , Cold Drawn / hot rolled steel tube
- JIS G 3473 Carbon Steel Hydraulic Cylinder Tube for petro - chemical and metallurgical
- ASTM A519 Seamlss Carbon And Alloy Steel Hydraulic Cylinder Tube OD 6 - 350MM Fixed Length
- Bare / Varnish / Black Hydraulic cylinder tube , high pressure seamless pipe DIN2391
- EN10305-4 Seamless Cold Drawn Hydraulic Cylinder Tube for hydraulic and pneumatic power
- EN10305-1 High Precision Round Carbon Steel Hydraulic Cylinder Tube / Pipe 0.5 - 25mm
- ASTM A106 / SA106 Grade A / B / C seamless Heavy Wall Steel Tube for High Temperature
- Carbon And Alloy Steel Heavy Wall Steel Tube / Pipe , Steel Mechanical Tubing ASTM A519
- ASTM A53 A106 Round Seamless thick wall steel tubing / pipe for fluid transportation
- ASTM A335 P5 P11 P12 Cold Drawn Alloy Steel Heavy Wall Steel Tube Seamless 6 - 16m
- ASTM A335 Thick / Heavy Wall Steel Tube , alloy steel seamless pipe for bending , flanging
- ASTM A519 Seamlss Heavy Wall Steel Tube / Tubing for engineering , auto parts
- JIS G 3462 Seamless Carbon Steel U Bend Pipe For Boiler And Superhearter
- JIS G 3461 Cold drawn u bend tube with Oiling / Black painting / Varnish Surface
- Standard Seamless U Bend Pipe , Cold Drawn Heat Exchanger Tubing BS3059-2
- DIN17175 Carbon / Alloy Steel seamless pipes , U bending steel tubing PE , ends caps
- EN10216-1 Non-Alloy steel U Bend Pipe with specified room temperature
- ASTM A210 / SA210 Seamless U Bend Pipe , round mechanical tubing with PED , ISO
- High Pressure Carbon Steel Seamless U Bend Pipe , MIN WT bend steel tubing
- ASTM A179 Seamless Cold Drawn U shaped pipe For Heat - Exchanger And Condenser
- ASTM A179 Cold Drawn Seamless Steel Pipe , Heat - Exchanger And Condenser Tubing
- ASTM A106 Grade A / B / C High Pressure Cold Drawn Seamless Tube Carbon Steel
- DIN1629 Circular Seamless Mild Steel Tube , Oiling / Black cold drawn steel pipes
- Mild steel round tube for Mechanical And Engineering , mild steel exhaust tubing EN10297-1
- ASTM A519 Thickness 8mm Mild Steel Tube , Seamlss Carbon And Alloy Steel Tube
- ASTM A210 / SA210 Grade Mild Steel Tube / pipes , 1 / 2 - 5inch Outer Diameter
- ASTM A192 / SA192 High Pressure Mild Steel Tube wall thickness 2.2 - 25.4mm
- Cold Drawn Seamless Heat Exchanger and Mild Steel Tube MIN WT ASTM A179 / SA179
- EN10305-4 E235 E355 Seamless Precision Steel Tubing , Pneumatic and Hydraulic Pipe
- BS 6323-4 St35 St45 St52 Circular Precision Steel Tube / Pipe Cold finished hard / soft
- EN10305-4 Carbon Steel Precision Steel Tube , Cold Drawn Seamless Steel Pipe
- Cold Drawn and stress relieved Seamless Precision Steel Tubes EN10305-1 E215 E235 E255
- ASTM A519 Precision Steel Tube 1008 1010 1045 Grade , seamless round mechanical tubing
- DIN2391 Circular Precision Steel Tube wall thickness 0.8 - 35mm OD 6 - 350mm
- Oiling Circular Seamless Carbon Steel Heat Exchanger Tubes JIS G 3461 STB340 STB410
- BS3059-2 Heat Exchanger Tubes OD 12 - 127mm , seamless carbon steel pipes 360 / 440 Grade
- BS3059-1 Grade 320 seamless and welded Heat Exchanger Tubes 1 - 12mm Wall Thickness
- Cold Drawn Seamless Heat Exchanger Tubing / Pipe ASTM A213 / SA213 T5 T11 T12
- High pressure Heat Exchanger Tubes for oil , gas , steam , cold drawn steel pipes
- Seamless low carbon stee lcondenser and Heat Exchanger Tubes ASTM A179 , ends caps
- JIS G 3454 / 3455 Seamless Carbon Steel High Pressure Pipe / tubing , BE / PE , ends caps
- STPG 370 / 410 Grade High Pressure Pipe welding , boiler / superheater / preheating tubes
- GB 5310 20G 25MnG Seamless Alloy Steel High Pressure Pipe / tubes OD WT Customized
- GB 5310 Round cold drawn High Pressure Pipe , Oiling / Black alloy steel seamless tubes
- EN10216-1Cold Drawn , Hot Roll welding High Pressure Pipe / piping 10.2 - 711mm OD
- ASTM A192 Circular high pressure steel pipe / tube , black carbon steel pipe 1 / 2 - 7inch OD
- High Temperature Seamless high pressure steam pipe / piping ASTM A106 Grade A / B / C
- Seamless Carbon Steel high pressure gas pipe , Cold Drawn water and fuel pipe
- BS3059-2 cold drawn seamless pipe , Round Black Boiler and superheater tube 6 - 16m
- BS3059-1 Grade 320 Cold Drawn Seamless Tube with Oiling / Black painting / Varnish Surface
- EN10297-1 Cold Drawn Seamless Tube , General Engineering and round mechanical tubing
- Hot Roll / Cold Drawn Seamless welded carbon steel pipe threading EN10255 S195T Grade
- Customized DIN1629 Unalloyed Cold Drawn Seamless Tube for pipe - line , machine design
- DIN17175 ST35.8 Heat - Resistant Steels Cold Drawn Seamless Tube for low temperature
- ASTM A333 Grade 1 / 6 Carbon Steel cold drawn steel pipes 1 / 8 - 4 inch OD , 1 - 12mm WT
- JIS G 3454 STPG 370 STPG 410 carbon steel pipe wall thickness 12mm 0.5 - 660.4mm OD
- EN10255 S195T Grade Seamless Steel Tube , cold crawn carbon steel pipe Customized
- Standard DIN17175 Round Black mild steel seamless pipe Custom Fixed Length 6 - 16m
- DIN1630 High Performance Unalloyed Seamless Circular Steel Pipe Grade ST 37.4 / 44.4 / 52.4
- ASTM A53 Grade A / B Carbon Steel Seamless Steel Pipe for fluid transportation
- ASTM A106 Carbon Steel Seamless Black Steel Pipe Grade A / B / C OD 10.3mm - 660.4mm
- ASTM A334 / 334M Min WT Seamless Steel Pipe / Tubing , Low Temperature carbon steel pipe
- ASTM A333 Seamless Steel Pipe , carbon steel pipe wall thickness 1 - 12mm random length
- Custom circular Seamless Steel Pipe DIN1629 for chemical equipment , vessel , pipe - line
- JIS G 3454 high pressure seamless pipe , 18inch 24inch steel pipe Grade STPG 370 / 410
- EN10216-1 Hot Roll / Cold Drawn Seamless Steel Pipe Low pressure OD 10.2 - 711mm
- Non - Alloy Seamless Boiler Tubes , EN10216-1 low temperature carbon steel pipe TR1 / TR2
- ASTM A213 T5 T11 alloy steel seamless pipes , Boiler and Heat - exchanger Tubes
- JIS G 3454 High Pressure Carbon Steel Seamless Boiler Tubes , Oiling / Black painting Surface
- DIN17175 Carbon / Alloy Steel seamless boiler Tube Of Heat - Resistant Steels 6 - 16m
- JIS G 3462 Seamless Cold Drawn Superhearter and Boiler Tubing Grade STBA22 / STBA23
- Seamless Boiler Tubes BS3059-2 , round mechanical tubing with Varnish / Passivation Surface
- JIS G 3461 Seamless boiler tube thickness 12mm steel pipe Circular Grade STB340 / 410
- Low Tensile Carbon Steel Seamless Boiler Tubes BS3059-1 Grade 320 OD 12 - 127mm
- DIN1630 High Performance Seamless Circular Steel Tubes , Black Carbon Steel Pipe
- DIN17175 Carbon Steel Seamless Pipe , Heat - Resistant Alloys Stainless Steel
- BS3059-2 OD 12mm Stainless Steel Tube for steel boiler and Superheater Tubes
- High Pressure Seamless Pipe , BS3059-1 Carbon Steel tube for Boiler , Super Heater
- EN10305-4 Cold Drawn Precision Carbon Steel Seamless Pipe with PED , ISO Certificate
- E215 E235 E355 Grade Precision Seamless Steel Tubes with Cold Drawn and Stress Relieved
- Black Round Steel Tubing Seamless , EN10297-1 Engineering and mechanical steel tubing
- S195T EN10255 Carbon Steel Seamless Pipe for welding and threading OD 10.2 - 165.1mm
- Hot Roll Carbon Steel Seamless Pipe EN10216-1 , Black Painting / Varnish / Passivation Tube
- ASTM A519 cold drawn Carbon and alloy steel seamless pipes For Mechanical , auto parts
- ASTM A334 Carbon Steel Seamless Pipe / Tube , 2inch 4inch Steel Pipe Non - Secondary
- ASTM A333 Grade 6 Pipe , 1/8 - 4 inch Carbon Steel Seamless Pipe For Low - Temperature
- ASTM A210 Seamless Middle - Carbon Steel Pipe Grade A - 1 , C WT 0.035 - 0.5inch
- ASTM A192 High Pressure Carbon Steel Seamless Pipe large diameter OD 1 / 2 - 7 inch
- ASTM A179 thin wall Carbon Steel Seamless Pipe , Condenser And Heat - Exchanger Tube
- ASTM A106 Grade A / B / C Hot roll , cold drawn seamless tubing carbon steel 6 - 16m
- ASTM A192 high pressure seamless carbon steel tube for Boiler , superheat , heat - exchanger
- Steel Pipe ASTM A53 Grade A / B Carbon Steel Seamless Pipe for fluid transportation