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<title><![CDATA[EC21 Product Catalogs - surface process]]></title>
<link><![CDATA[https://www.ec21.com/ec-market/surface_process--2842/1/surface process.html]]></link><item>
<title><![CDATA[SSAW Steel Pipe]]></title><link><![CDATA[https://supersteel123.en.ec21.com/SSAW_Steel_Pipe--12045493_12045500.html]]></link><description><![CDATA[Surface treatment: Black painting / Oil painting / Anti-rust oil / Anti-corrosive coating
Application: Oil and gas pipeline, water transmission, liquid transportation, building construction, steel st]]></description><pubDate><![CDATA[20250227]]></pubDate></item>
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<title><![CDATA[EN10219 Cold Formed Welded Structural Tubes S355j0 S355jr S355j2]]></title><link><![CDATA[https://jnxjysteel.en.ec21.com/EN10219_Cold_Formed_Welded_Structural--12043642_12043645.html]]></link><description><![CDATA[processed at room temperature,typically offering better dimensional accuracy and surface quality.
Steel Pipe Product Parameter:
Description Name EN10219 Cold Formed Welded Structural Tubes S355J0 S35]]></description><pubDate><![CDATA[20250218]]></pubDate></item>
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<title><![CDATA[China OEM 1.5 Inch DN40 Pre Galvanized Steel Pipe Price Quotes]]></title><link><![CDATA[https://ropregal.en.ec21.com/China_OEM_1.5_Inch_DN40--12036094_12036099.html]]></link><description><![CDATA[Key attributes
Section
Shape 
Round 
Surface
Treatment 
Cold
Rolled 
Tolerance 
±15%,
±20%, ±10% 
Oiled
or Non-oiled 
Non-oiled 
Invoicing 
by
actual weight 
Place
of Origin 
Tianjin,
China 
Alloy]]></description><pubDate><![CDATA[20250111]]></pubDate></item>
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<title><![CDATA[Carbon Steel Square Tube]]></title><link><![CDATA[https://18222310105.en.ec21.com/Carbon_Steel_Square_Tube--12034887_12034888.html]]></link><description><![CDATA[Surface Treatments: The product offers different surface treatments, such as galvanized, carbon black iron, and painted, catering to various customer requirements.
Competitive Pricing: As a factory p]]></description><pubDate><![CDATA[20250106]]></pubDate></item>
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<title><![CDATA[Seamless Galvanized Steel Pipes and Fittings]]></title><link><![CDATA[https://yulantechnology14.en.ec21.com/Seamless_Galvanized_Steel_Pipes_and--12008703_12008704.html]]></link><description><![CDATA[Seamless steel pipe galvanized steel circular tube and fittings PL530 
The surface treatment process of seamless steel pipe is anodizing (sandblasting/drawing/polishing), electrophoresis, spraying (p]]></description><pubDate><![CDATA[20240923]]></pubDate></item>
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<title><![CDATA[Hot Dipped Galvanized Steel Pipe]]></title><link><![CDATA[https://tjsinosteel.en.ec21.com/Hot_Dipped_Galvanized_Steel_Pipe--11090280_11090296.html]]></link><description><![CDATA[Surface treatment 
hot-dipped galvanized/Painting/Oiled 
Section shape 
round 
Delivery 
1) container2) bulk carrier 
Port of shipment 
Xingang Port, Tianjin, China 
Terms of Payment 
L/C, T/T, D/P, ]]></description><pubDate><![CDATA[20240919]]></pubDate></item>
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<title><![CDATA[Color Coated Steel Sheet]]></title><link><![CDATA[https://hongyuansteelpipe.en.ec21.com/Color_Coated_Steel_Sheet--12006202_12006207.html]]></link><description><![CDATA[Surface treatment: We use advanced hot-dip galvanizing, coating and other treatment processes to ensure that the product surface is smooth, uniform, bright in color, and has good corrosion resistance]]></description><pubDate><![CDATA[20240918]]></pubDate></item>
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<title><![CDATA[Seamless Carbon Steel Pipe]]></title><link><![CDATA[https://zhseamlesspipe.en.ec21.com/Seamless_Carbon_Steel_Pipe--11988939_11988946.html]]></link><description><![CDATA[processed through cold drawing or hot rolling without adding welding materials. The inner and outer surfaces are smooth, the dimensions are precise, and they can meet the requirements of high strengt]]></description><pubDate><![CDATA[20240821]]></pubDate></item>
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<title><![CDATA[JIS G 3456 STPT370 Carbon Seamless Steel Pipes]]></title><link><![CDATA[https://botopsteelpipe.en.ec21.com/JIS_G_3456_STPT370_Carbon--11045475_11051183.html]]></link><description><![CDATA[surfaces. Defects can be removed, but the minimum wall thickness must be ensured.
More information:
https://www.blog4evers.com
https://www.weblogworld.com
https://www.bachematz.com
https://www.blogeq]]></description><pubDate><![CDATA[20240605]]></pubDate></item>
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<title><![CDATA[ASTM A519 Carbon and Alloy Seamless Steel Mechanical Pipe]]></title><link><![CDATA[https://botop123456.en.ec21.com/ASTM_A519_Carbon_and_Alloy--11940818_11940826.html]]></link><description><![CDATA[grades of carbon steel: MT 1015, MT 1020, 1026,1035;Common grades of alloy steel: 4130, 4140, 4150;Coating: tubing may be coated with a rust retarding oil on the outside and inside surfaces.
]]></description><pubDate><![CDATA[20240522]]></pubDate></item>
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<title><![CDATA[Stainless Steel Sheet]]></title><link><![CDATA[https://gallianz.en.ec21.com/Stainless_Steel_Sheet--11858614_11903237.html]]></link><description><![CDATA[surface
Easy to install
American Iron and Steel Institute (AISI) Designation System
300&apos;s - Chromium-Nickel Stainless Steel this series is austenitic, non-heat treatable, and non-magnetic.
400&apos;s - Ch]]></description><pubDate><![CDATA[20240401]]></pubDate></item>
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<title><![CDATA[DIN2391 ST52 / E355 Seamless Cold-drawn Precision Steel Tubes for Cylinders]]></title><link><![CDATA[https://susanxudsteel.en.ec21.com/DIN2391_ST52_E355_Seamless_Cold--11665304_11666210.html]]></link><description><![CDATA[surface checking to avoid surface defects.
Related ProductsHydraulic Cylinder Tubing DIN 2391 ST52.3Honed Tubing ASTM A513 Tubes and Bars For Cylinders SAE1026Honed Tube, Pneumatic / Hydraulic Cylind]]></description><pubDate><![CDATA[20221031]]></pubDate></item>
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<title><![CDATA[AISI 1018 Steel Tube]]></title><link><![CDATA[https://vivian6789.en.ec21.com/AISI_1018_Steel_Tube--11844657_11846180.html]]></link><description><![CDATA[surface preparation, chemical composition, rolling and heating processes. All these processes develop a supreme quality product that are suited to fabrication processes such as welding, forging, dril]]></description><pubDate><![CDATA[20230920]]></pubDate></item>
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<title><![CDATA[Header Pipes for Parallel Flow Evaporators and Condensers]]></title><link><![CDATA[https://sinupower.en.ec21.com/Header_Pipes_for_Parallel_Flow--11842620_11842627.html]]></link><description><![CDATA[surfaces. The header pipes serve as distribution and collection points for the refrigerant entering and leaving the evaporator tubes. The refrigerant enters the header pipe, where it is distributed e]]></description><pubDate><![CDATA[20230908]]></pubDate></item>
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<title><![CDATA[Structural Steel Pipe GOST8731-74]]></title><link><![CDATA[https://tefu888.en.ec21.com/Structural_Steel_Pipe_GOST8731_74--11750485_11750489.html]]></link><description><![CDATA[Surface
Rust remove, black painting, antirust oil, varnish,
hot-dip galvanized etc.
Package
By bundles, plastic caps or steel caps,
wooden cases or as requirement.
Capability
6000tons/month.
End
plai]]></description><pubDate><![CDATA[20230317]]></pubDate></item>
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<title><![CDATA[Viscoelastic Anti-Corrosion Tape]]></title><link><![CDATA[https://wenlimin198987.en.ec21.com/Viscoelastic_Anti_Corrosion_Tape--11808512_11808518.html]]></link><description><![CDATA[processed by special production process.
Product characteristics
1. High strength effectively protect the surface of equipment such as pipelines and valves from damage.
2. Corrosion resistance: it ha]]></description><pubDate><![CDATA[20230619]]></pubDate></item>
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<title><![CDATA[ASTM A312 Tp316L Smls Stainless Steel Tube]]></title><link><![CDATA[https://20011002yn.en.ec21.com/ASTM_A312_Tp316L_Smls_Stainless--11616152_11616153.html]]></link><description><![CDATA[Surface Finishing: 2B, BA, NO.4, NO.6, 8K, HL, Etching, SB, Ti-coating etc.No.1Thickness(mm) 0.25-3.0mm2.5/ 3.0/ 4.0/ 5.0/ 6.0/ 8.0/ 10.0/ 12.0mmWidth(mm) Coil: 1000~1524 up mmSheet size to be custom]]></description><pubDate><![CDATA[20220805]]></pubDate></item>
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<title><![CDATA[Manufacturer&apos;s Direct Sales of SS304L Steel Pipe]]></title><link><![CDATA[https://jingchang2004.en.ec21.com/Manufacturer_s_Direct_Sales_of--11878297_11878298.html]]></link><description><![CDATA[material to manufacture hydraulic cylinders. This is because honed tubes are the most critical materials for hydraulic cylinders. Honing is essentially a bore sizing and surface preparation process]]></description><pubDate><![CDATA[20231221]]></pubDate></item>
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<title><![CDATA[Seamless Galvanized Welded Steel Pipe ASTM A106 Standard 8mm Diameter]]></title><link><![CDATA[https://steelcoils.en.ec21.com/Seamless_Galvanized_Welded_Steel_Pipe--11883001_11883002.html]]></link><description><![CDATA[surface treatment of Galvanized Steel Pipe is galvanized, which provides extra protection against rust and corrosion. The minimum order quantity (MOQ) for Galvanized Steel Pipe is one ton, making it ]]></description><pubDate><![CDATA[20240103]]></pubDate></item>
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<title><![CDATA[Epoxy Coating Steel Pipes]]></title><link><![CDATA[https://jina1701.en.ec21.com/Epoxy_Coating_Steel_Pipes--11856841_11859134.html]]></link><description><![CDATA[Processing Service
Bending, Welding, Punching, Cutting
Length
9M 12M 6M 10M
Standard
API 5L PSL1/ PSL2
Surface
Epoxy layer
Material
ST37/ST45/ST52/25Mn/27SiMn/E355/SAE1026/STKM13C
End
Beveled
Usage
T]]></description><pubDate><![CDATA[20231026]]></pubDate></item>
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<title><![CDATA[Office Container]]></title><link><![CDATA[https://zhongtai01.en.ec21.com/Office_Container--11653940_11653941.html]]></link><description><![CDATA[surface flooring.
Steel frame 
Frame structure: cold formed profile steel, 4mm thickness; Corrosion Protection: Polishing, derusting, sand blasting; Finishing coat: alkyd honed painting； Connected ]]></description><pubDate><![CDATA[20221011]]></pubDate></item>
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<title><![CDATA[Hydraulic Cylinder Barrels of Material ST52/ST52.3, ID Tolerance H8-H9, ID 1.25 Inch To 24 Inch]]></title><link><![CDATA[https://honedtubing.en.ec21.com/Hydraulic_Cylinder_Barrels_of_Material--11537181_11662632.html]]></link><description><![CDATA[surface is required.
As the professional hydraulic cylinder material manufacturer and supplier, besides honed tubing, our factory also produces below products for cylinder manufacturing and repairing]]></description><pubDate><![CDATA[20221025]]></pubDate></item>
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<title><![CDATA[ASTM A106 API 5L Seamless Steel Pipe Astm A53 Steel Pipe 13.7 - 610Mm]]></title><link><![CDATA[https://pipesteels.en.ec21.com/ASTM_A106_API_5L_Seamless--11871374_11871375.html]]></link><description><![CDATA[Surface Treatment:
Hot Rolled
Tolerance:
±10%
Processing Service:
Welding, Punching, Cutting, Bending, Decoiling
Oiled or Non-oiled:
Non-oiled
Invoicing:
by theoretical weight
Delivery Time:
8-14 da]]></description><pubDate><![CDATA[20231129]]></pubDate></item>
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<title><![CDATA[Finned Tubes]]></title><link><![CDATA[https://longhuatech.en.ec21.com/Finned_Tubes--11825682_11825690.html]]></link><description><![CDATA[Process Used To Manufacture Finned Tubes?
The manufacturing process for finned tubes involves taking a basic tube and attaching fins to its exterior surface. Various methods such as roll bonding, ext]]></description><pubDate><![CDATA[20230727]]></pubDate></item>
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<title><![CDATA[Bright Mirror Polished 19mm 23mm 25mm 32mm Welded 201 304 316 Stainless Steel Pipe]]></title><link><![CDATA[https://harper123.en.ec21.com/Bright_Mirror_Polished_19mm_23mm--11643632_11663111.html]]></link><description><![CDATA[Processing Service:Bending, Welding, Decoiling, Punching, Cutting, Moulding, Bending, Welding Decoiling, Punching, CuttingGrade:200,300,400 Series,Section Shape:RoundAlloy Or Not:Is AlloySurface Fini]]></description><pubDate><![CDATA[20230315]]></pubDate></item>
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<title><![CDATA[High Frequency Welded Finned Pipe of Punching Type]]></title><link><![CDATA[https://jysuling1.en.ec21.com/High_Frequency_Welded_Finned_Pipe--11600429_11812599.html]]></link><description><![CDATA[surface area to achieve efficiency. The heat transfer ratio of high frequency welding fin tube is about 8~9 times higher than other plain tubes.
■ This Welded Helical Fin Tubes is a singular integr]]></description><pubDate><![CDATA[20230628]]></pubDate></item>
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<title><![CDATA[Carbon Steel Pipe]]></title><link><![CDATA[https://threewaysteel.en.ec21.com/Carbon_Steel_Pipe--4978487_6603254.html]]></link><description><![CDATA[Surface: Fusion bond Epoxy coating, Coal Tar Epoxy, 3PE, Vanish Coating, Bitumen Coating, Black Oil coating as per customer&amp;rsquo;s requirement
Test: Chemical Component Analysis, Mechanical Propertie]]></description><pubDate><![CDATA[20120423]]></pubDate></item>
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<title><![CDATA[Factory Directly Supply Hot Rolled Welded Galvanized Drip Irrigation Pipe with Low Price]]></title><link><![CDATA[https://alan3218.en.ec21.com/Factory_Directly_Supply_Hot_Rolled--10961535_10962134.html]]></link><description><![CDATA[process gives the seamless pipe a smooth and even surface finish, without any visible joints. This product is more expensive than welded pipe, but is also considered more reliable, and can result in ]]></description><pubDate><![CDATA[20190529]]></pubDate></item>
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<title><![CDATA[ST35 Seamless Precision Steel Tubes]]></title><link><![CDATA[https://fushunharrislee.en.ec21.com/ST35_Seamless_Precision_Steel_Tubes--11456488_11458394.html]]></link><description><![CDATA[surfaces
--Excellent machining characteristics
--Wider range of physical properties attainable through process and annealing options
Carbon-manganese steels like grade ST 35 is one of the most afford]]></description><pubDate><![CDATA[20211013]]></pubDate></item>
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<title><![CDATA[High Quality ASTM106 Carbon Welded ERW Steel Pipe]]></title><link><![CDATA[https://jetvision.en.ec21.com/High_Quality_ASTM106_Carbon_Welded--11032076_11103632.html]]></link><description><![CDATA[Surface Fusion bond Epoxy coating, Coal Tar Epoxy, 3PE, Vanish Coating, Bitumen Coating, Black Oil coating as per customer’s requirement 
Certificate API 5L PSL1/ PSL2 
Standard ASTM 5L, ASTM A53, ]]></description><pubDate><![CDATA[20200414]]></pubDate></item>
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<title><![CDATA[Black Carbon Welded Steel Pipe  ERW Steel Pipe  Welded Furniture Pipe]]></title><link><![CDATA[https://creditsteelpipe.en.ec21.com/Black_Carbon_Welded_Steel_Pipe--10987616_10987624.html]]></link><description><![CDATA[surface can be treated by galvanized, oil, black painting, 3pe or as customer request. Normal usage validity time will be around 5-10 years.
Product Description
1. Carbon welded steel pipe
2. Main ap]]></description><pubDate><![CDATA[20240319]]></pubDate></item>
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<title><![CDATA[Anti Corrosion Pipe Supports]]></title><link><![CDATA[https://leakprotection.en.ec21.com/Anti_Corrosion_Pipe_Supports--11622383_11622389.html]]></link><description><![CDATA[The proprietary hydrophobic material has high compressive strength; it will not crack, creep, or cold-flow.Temperature:-55°C up to 110°CCover :poly shrinkU bolt:dacromet surface processing for CS, ]]></description><pubDate><![CDATA[20220817]]></pubDate></item>
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<title><![CDATA[ASME1020/1010 Carbon Steel Seamless Steel Pipe for Engineering Equipment]]></title><link><![CDATA[https://reynzhang364.en.ec21.com/ASME1020_1010_Carbon_Steel_Seamless--11812684_11812685.html]]></link><description><![CDATA[surface volume is the largest under the condition of equal circumference, more fluid can be transported with circular tubes. In addition, when the annular section is subjected to internal or external]]></description><pubDate><![CDATA[20230628]]></pubDate></item>
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<title><![CDATA[20Cr Alloy Seamless Steel Pipes]]></title><link><![CDATA[https://haihuisteel.en.ec21.com/20Cr_Alloy_Seamless_Steel_Pipes--11814565_11879631.html]]></link><description><![CDATA[Yield Strength, Elongation, Hardness, Straightness, etc.
8. Packing and Stocking.
100% Eddy Current Testing.
100% Size Tolerance Checking.
100% Tube surface checking to avoid surface defects
]]></description><pubDate><![CDATA[20231225]]></pubDate></item>
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<title><![CDATA[Anti-corrosion and Insulated Steel Pipe Production Line]]></title><link><![CDATA[https://txhmachine.en.ec21.com/Anti_corrosion_and_Insulated_Steel--11854146_11875616.html]]></link><description><![CDATA[surface of the pipes, preventing contact between the steel and corrosive environments such as moisture, chemicals, and saltwater. This barrier inhibits the formation of rust and corrosion, thereby en]]></description><pubDate><![CDATA[20231214]]></pubDate></item>
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<title><![CDATA[316L Stainless Steel Welded  Pipe]]></title><link><![CDATA[https://yesi882000.en.ec21.com/316L_Stainless_Steel_Welded_Pipe--862894_932544.html]]></link><description><![CDATA[Process method: plasma welded (Germany Instrument.)
Surface: pickle
Our products comply with the following materials,
202,304, 304L, 316L, 321,310S,S31803，409L etc. 
Product size range: 
Outer diam]]></description><pubDate><![CDATA[20200513]]></pubDate></item>
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<title><![CDATA[Black Carbon Seamless Steel Precision Pipes and Tubes for Gas Spring Cylinder]]></title><link><![CDATA[https://wrjeffrey.en.ec21.com/Black_Carbon_Seamless_Steel_Precision--11097939_11206288.html]]></link><description><![CDATA[Surface:Black/bright 
Standard:DIN, GB, JIS, DIN 17175, DIN 2391, GB 5310-1995, GB/T 13793-1992, GB/T 3094-2000, GB/T 8163-1999, JIS G3101
Size :OD 3mm-140mm Thickness 0.5-20mm
Processing :Cold rolle]]></description><pubDate><![CDATA[20200721]]></pubDate></item>
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<title><![CDATA[Precision Steel Tubes for Shock Absorbers Gas Spring]]></title><link><![CDATA[https://hsmpaul.en.ec21.com/Precision_Steel_Tubes_for_Shock--11270050_11270101.html]]></link><description><![CDATA[Surface:Black/bright 
Standard:DIN, GB, JIS, DIN 17175, DIN 2391, GB 5310-1995, GB/T 13793-1992, GB/T 3094-2000, GB/T 8163-1999, JIS G3101
Size :OD 3mm-140mm Thickness 0.5-20mm
Processing :Cold rolle]]></description><pubDate><![CDATA[20201004]]></pubDate></item>
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<title><![CDATA[Spiral Welded Steel Pipe Mill]]></title><link><![CDATA[https://shanxisxmidas.en.ec21.com/Spiral_Welded_Steel_Pipe_Mill--10780767_10781113.html]]></link><description><![CDATA[process. It is also called SSAW pipes. Spiral welded pipe is characterized by uniform deformation, small residual stress, no surface scratches during the molding process. The SSAW pipes are mainly us]]></description><pubDate><![CDATA[20201216]]></pubDate></item>
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<title><![CDATA[SSAW Steel Pipe]]></title><link><![CDATA[https://robertyin.en.ec21.com/SSAW_Steel_Pipe--10682856_10683027.html]]></link><description><![CDATA[Surface Treatment:
External Coating:
Type
Standard
Single-Layer FBE Coating
SY/T 0315-2005, CAN/CSA Z245.20-2010,
DEP 31.40.30.32-Gen-2011, ISO 21809-2-2007, API RP 5L9-2001
Double-Layer FBE Coating
]]></description><pubDate><![CDATA[20191012]]></pubDate></item>
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<title><![CDATA[Black Steel Pipe (ASTM A53/A53M-07, ASTM A500/A500M-07, JIS G3444:2004, JIS G3466:2006, AS1163-2009)]]></title><link><![CDATA[https://hoasensteel.en.ec21.com/Black_Steel_Pipe_ASTM_A53--8573173_8573154.html]]></link><description><![CDATA[Following the production process: pickling, cold rolling, annealing, galvanizing, slitting, formed rolling, Hoa Sen steel pipe have clean and smooth surface, steady thickness, high plasticity and goo]]></description><pubDate><![CDATA[20131028]]></pubDate></item>
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<title><![CDATA[DIN2440,DIN2448,DIN1629 ST33.2 Seamless Steel Pipes and Tubes]]></title><link><![CDATA[https://cnpipeline.en.ec21.com/DIN2440_DIN2448_DIN1629_ST33.2_Seamless--4175128_4455793.html]]></link><description><![CDATA[01
Commodity: DIN2440 ST33.2 seamless carbon steel pipe and tube
02
Process method: Cold drawn/cold rolling
03
Surface finish: Black,galvanizing
04
Materials: ST35.8 ST33,St52
05
Standards: ISO,DIN/A]]></description><pubDate><![CDATA[20160809]]></pubDate></item>
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<title><![CDATA[Hot Rolled Strip]]></title><link><![CDATA[https://huaroshanghai.en.ec21.com/Hot_Rolled_Strip--11147016_11315053.html]]></link><description><![CDATA[surface cleaning can be manually or by a scarfing machine with running the oxyacetylene torch. The treatment of the slab is pushed or walked over the wide side through a heating furnace with a dimens]]></description><pubDate><![CDATA[20201228]]></pubDate></item>

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