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<title><![CDATA[EC21 Product Catalogs - as certification]]></title>
<link><![CDATA[https://www.ec21.com/ec-market/as_certification--2842/1/as certification.html]]></link><item>
<title><![CDATA[Carbon Steel Coil]]></title><link><![CDATA[https://jnxjysteel.en.ec21.com/Carbon_Steel_Coil--12043642_12043643.html]]></link><description><![CDATA[as customer&apos;s request
Size Thickness from 2mm-60mm, width from 1250mm-2000mm, length from 1m-12m or according to customer&apos;s special request
Technology Hot roll, cold roll, cold drawn, ect.
Trade Term]]></description><pubDate><![CDATA[20250218]]></pubDate></item>
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<title><![CDATA[Wholesale High Quality 1/2  24 Inch ASTM A106B A53B Carbon Seamless Pipe Factory]]></title><link><![CDATA[https://ropregal.en.ec21.com/Wholesale_High_Quality_1_2--12036094_12036114.html]]></link><description><![CDATA[Material：20#, A106B,Q355,ST52
Thickness：1.7mm-31.8mm
Length：5.8M,6M,11.8M,12M or As
Customer’s Request.
MOQ：5 Mt
Surface: Oiled / Anti-corrosion Paint
Certification：ISO9001:2008,SGS,BV,
P]]></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[Certification: The product meets international standards, including ISO 9001, ISO 14001, and GB/T28001, guaranteeing quality and sustainability in production processes.
Customizable Specifications: A]]></description><pubDate><![CDATA[20250106]]></pubDate></item>
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<title><![CDATA[Cold Drawn Seamless Carbon Steel Tube GOST8734 ST20]]></title><link><![CDATA[https://lunbaosteeltubes.en.ec21.com/Cold_Drawn_Seamless_Carbon_Steel--11849819_11878302.html]]></link><description><![CDATA[as autobile parts ,heavy equipment ,hydralic and pneumatic cylinder, ship building ,for boiler and drill and mechanical purpose !
our annual output is more than 50000tons ,our famour customer like Au]]></description><pubDate><![CDATA[20241120]]></pubDate></item>
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<title><![CDATA[Seamless Steel Pipe (Micropile Tube)]]></title><link><![CDATA[https://topmetal123.en.ec21.com/Seamless_Steel_Pipe_Micropile_Tube--11966436_11966447.html]]></link><description><![CDATA[strength ≥ 689 MpaOutside Ø tolerance ± 1%Thickness tolerance ± 12.5%Certificate EN10204 3.1 B
Steel: Q345B, N80 or as requested. Other sizes can be produced and supplied by request. 
]]></description><pubDate><![CDATA[20240710]]></pubDate></item>
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<title><![CDATA[L80-13cr OIL CASING]]></title><link><![CDATA[https://tjlkl.en.ec21.com/L80_13cr_OIL_CASING--11948093_11948094.html]]></link><description><![CDATA[certification, American Petroleum Institute API 5CT certification and a number of national patent certificates. The production workshop has a number of equipment such as high-precision CNC lathes, th]]></description><pubDate><![CDATA[20240626]]></pubDate></item>
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<title><![CDATA[Large Diameter Spiral Steel Pipe  SSAW Steel Pipe  Carbon Steel Seamless Line Pipe]]></title><link><![CDATA[https://creditsteelpipe.en.ec21.com/Large_Diameter_Spiral_Steel_Pipe--10987617_10987634.html]]></link><description><![CDATA[certification. 
For more product information, please click here
to visit our website.
https://www.creditsteelpipe.com/
More Products Please View Hifactory
.
More information:
http://www.bestabmachine]]></description><pubDate><![CDATA[20240319]]></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[as customer&apos;s requirements.FAQ:Q1:how can we guarantee quality?A1:Always a pre-production sample before mass production;Always final Inspection before shipment; Q2: What certifications do Qingdao She]]></description><pubDate><![CDATA[20240103]]></pubDate></item>
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<title><![CDATA[304 316 Stainless Steel Seamless Pipes]]></title><link><![CDATA[https://cn04036056.en.ec21.com/304_316_Stainless_Steel_Seamless--9942839_9973724.html]]></link><description><![CDATA[certificate,PED certificates from Lloyd&amp;#39;s Register Quality Assurance as well.We can produce stainless steel pipes,such as 304/304L,316/316L,321,321H,317/317L,347/347H,310S,2205/S31803 duplex stee]]></description><pubDate><![CDATA[20160513]]></pubDate></item>
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<title><![CDATA[Steel Pipe]]></title><link><![CDATA[https://sigridsun.en.ec21.com/Steel_Pipe--11834079_11869747.html]]></link><description><![CDATA[as well as stainless pipes with official certification. Our annual exporting amount can be up to 100,000 tons to South America, Middle East, Southern Asia, Europe, Canada etc.You can send me a reply ]]></description><pubDate><![CDATA[20231124]]></pubDate></item>
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<title><![CDATA[Products]]></title><link><![CDATA[https://zhongtai01.en.ec21.com/Products--11824641_11824642.html]]></link><description><![CDATA[certification and strict implementation of quality management systems - from ordering down to after-sales technical services. To ensure seamless and efficient production workflows, our team has estab]]></description><pubDate><![CDATA[20230725]]></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[as petroleum geological drilling tubes, petrochemical cracking tubes, boiler tubes, bearing tubes and high-precision structural steel tubes for automobiles, tractors and aviation. Specification: Plac]]></description><pubDate><![CDATA[20231129]]></pubDate></item>
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<title><![CDATA[BS 1387 Hot Dip Galvanized/Galvanised Welded Steel Pipe/Tube]]></title><link><![CDATA[https://cnsolid.en.ec21.com/BS_1387_Hot_Dip_Galvanized--10642629_10642641.html]]></link><description><![CDATA[Certificate
ISO/SGS/BV/Lloyd/ABS/CCS/RINA/GL/DNV
Description:
For the steel to withstand the pressure to the hydraulic test to test its ability and quality, leakage, soaked or expansion for qualified]]></description><pubDate><![CDATA[20180528]]></pubDate></item>
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<title><![CDATA[Cold Formed Square and Rectangular Hollow Sections/Welded Steel Tubes]]></title><link><![CDATA[https://tiffanyjianhesteel.en.ec21.com/Cold_Formed_Square_and_Rectangular--10292317_10292318.html]]></link><description><![CDATA[Certificate we have: 
CE certificate 
ISO9001 
ISO18001 
EN1090 
As for the steel structures, we are specialized in the design and fabrication of steel structure. We can provide customer one stop ser]]></description><pubDate><![CDATA[20170206]]></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[High Frequency Welded Finned Pipe of Punching Type
1.Product Details:
Place of Origin:
China.Imported materials are available.
Brand Name:
Baerfu
Certification:
ISO...
Model Number:
HFW
2.Payment &amp; S]]></description><pubDate><![CDATA[20230628]]></pubDate></item>
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<title><![CDATA[AS ERW STEEL PIPES,A252 ERW CS Pipes,ERW Steel Pipe As EN10219,ST52 ERW Pipes]]></title><link><![CDATA[https://senhaisteelpipe.en.ec21.com/AS_ERW_STEEL_PIPES_A252--10842427_10842443.html]]></link><description><![CDATA[Certificates to be furnished for all pipes as EN10204-3.1B
H.S.Code: 7305, 7306,
ERW steel pipes are general used in a wide range of industries including:
Oil, gas, geothermal,
Petrochemical
Mechanic]]></description><pubDate><![CDATA[20230901]]></pubDate></item>
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<title><![CDATA[S355JR Piling Steel Pipe]]></title><link><![CDATA[https://threewaysteel.en.ec21.com/S355JR_Piling_Steel_Pipe--4978487_6790182.html]]></link><description><![CDATA[SSAW Steel Pipe 
Spiral Submerged-Arc Welded Steel Pipe
Usage: Used for low pressure liquid delivery, such as water, gas, and oil; construction and piling 
Standard: API 5L, API 5CT, ASTM A252, ASTM ]]></description><pubDate><![CDATA[20120720]]></pubDate></item>
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<title><![CDATA[API 5CT Seamless Steel Pipe, Steel Grade J55,N80,P110,PH-6 Petroleum Casing and Tubing in Oil]]></title><link><![CDATA[https://robertyin.en.ec21.com/API_5CT_Seamless_Steel_Pipe--10682856_10683141.html]]></link><description><![CDATA[as
buyer&apos;s requirements
Standard
API5L , ASTM A106 Gr.B, ASTM A53 Gr.B,ANSI A210-1996, ANSI B36.10M-2004 , ASTM
A1020-2002,ASTM A179-1990 ,BS 3059-2,DIN 17175 ,DIN 1630 ,DIN 2448
Certificates
API5CT,]]></description><pubDate><![CDATA[20191012]]></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[certification.
Steel pipe is produced in one of two methods, which result in either seamless or welded products.
Seamless pipe is made from solid round stock that is first heated, then extruded—pus]]></description><pubDate><![CDATA[20190529]]></pubDate></item>
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<title><![CDATA[Carbon Steel Pipe Cap]]></title><link><![CDATA[https://weihengsteel.en.ec21.com/Carbon_Steel_Pipe_Cap--10972930_11023345.html]]></link><description><![CDATA[as customers&apos; requirement
Applications
Petroleun, chemical, power, gas, metallurgy, shipbuilding, comstruction
Min order
1piece
Delicery time
10 after receipt of advanced payment
Certification
API, I]]></description><pubDate><![CDATA[20240109]]></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[Certificates (MTC)
Material Test Certificates (MTC) as per EN 10204/3.1B, EN 10204 3.1 and EN 10204 3.2, 100% Radiography Test Report,
Raw Materials Certificate, Third Party Inspection Report, Fumiga]]></description><pubDate><![CDATA[20211013]]></pubDate></item>
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<title><![CDATA[High Quality API 5L Hot Rolled Carbon Seamless Steel Pipe Tube]]></title><link><![CDATA[https://jetvision.en.ec21.com/High_Quality_API_5L_Hot--11032076_11033354.html]]></link><description><![CDATA[Certification: API 5CL, GOST, ISO9001, ISO14001,OHSMS18000 
Testing: Chemical Component Analysis, Mechanical Properties (Ultimate tensile strength, Yield strength, Elongation), Technical Properties (]]></description><pubDate><![CDATA[20191125]]></pubDate></item>
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<title><![CDATA[Api 5ct N80 L80 P110 Oil 9-5/8 47ppf Casing Tube Oil Well Construction Octg Casing Steel Pipe]]></title><link><![CDATA[https://zhuyan230401.en.ec21.com/Api_5ct_N80_L80_P110--11826223_11828442.html]]></link><description><![CDATA[certification and API certification of American Petroleum Association
FAQ
1 How can we guarantee quality? There will be strict inspection and testing for every order before shipping out. 2 Handling t]]></description><pubDate><![CDATA[20230802]]></pubDate></item>
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<title><![CDATA[Alloy Steel Pipe 34CrMo4 Seamless Steel Pipe]]></title><link><![CDATA[https://reynzhang364.en.ec21.com/Alloy_Steel_Pipe_34CrMo4_Seamless--11812684_11874481.html]]></link><description><![CDATA[as oil and gas, power generation, automotive, and construction.
The 34CrMo4 alloy steel pipe has excellent mechanical properties, including high tensile strength, good toughness, and fatigue resistan]]></description><pubDate><![CDATA[20231211]]></pubDate></item>
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<title><![CDATA[Classic Carbon LSAW Steel Pipe for Marine Engineer Construction]]></title><link><![CDATA[https://csco12138.en.ec21.com/Classic_Carbon_LSAW_Steel_Pipe--11873243_11873418.html]]></link><description><![CDATA[certification ,custom appreciate lettersThe mill certification: such as API Monogram ,ISO ect..ITP ,MPS &amp; ISO manualDelivery term: FCA/DDP/DDA etc can acceptLogistical and shipping chains ,we have si]]></description><pubDate><![CDATA[20231206]]></pubDate></item>
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<title><![CDATA[ASTM A179/ASTM179M-90A(2005) Standard Specification for Seamless Cold-drawn Low- Carbon Steel Heat-]]></title><link><![CDATA[https://tefu888.en.ec21.com/ASTM_A179_ASTM179M_90A_2005--11750485_11752145.html]]></link><description><![CDATA[Certification/Honor
ABS/LR/GL/BV/RINA/DNV/KR/CCS/TUV NORD/SGS/ISO9001/AS9100(BV)/ISO TS16949/Cooperation with China Industrial Design Institute/Dedicated for High-Speed Railway/Parker Hannifin Excell]]></description><pubDate><![CDATA[20230320]]></pubDate></item>
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<title><![CDATA[904L Stainless Steel Welded Pipe]]></title><link><![CDATA[https://yesi882000.en.ec21.com/904L_Stainless_Steel_Welded_Pipe--10805820_10805915.html]]></link><description><![CDATA[certifications of
*API 5LC, ASME(TUV Rheinland), PED 2014/68/EU;
* ISO 9001:2008; ISO 14001:2004, OHSAS 18001:2007;
*Approved manufacturer by CNNC ( China National Nuclear Corporation )
RULES FOR CLA]]></description><pubDate><![CDATA[20200513]]></pubDate></item>
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<title><![CDATA[API5CT Tubing Couplings L80 EUE, D-10 Couplings L80]]></title><link><![CDATA[https://haigemachinery.en.ec21.com/API5CT_Tubing_Couplings_L80_EUE--11355920_11361149.html]]></link><description><![CDATA[BTC, LTC, STC, Premium Connections, EUE, NUE
6. Type: Regular, Special Clearance
7. Length: as per API5CT Specification
8. Quality Test Certificate, Mill Test Certificate will be provided 
]]></description><pubDate><![CDATA[20210401]]></pubDate></item>
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<title><![CDATA[Penstock Steel Pipe Q345Bsprial Steel Pipe,Ssaw Steel Pipe]]></title><link><![CDATA[https://wbx1984915.en.ec21.com/Penstock_Steel_Pipe_Q345Bsprial_Steel--2461493_8261227.html]]></link><description><![CDATA[Material :Q235/Q345/20#/L245/X42-X65 etc 
Specification:1020mm*17mm 
Length: 6M/12M or as customers requirement 
Treatment: According to the requirements 
Certificates: SY/T5037-2000/GB/T9711.1-97/AP]]></description><pubDate><![CDATA[20240123]]></pubDate></item>
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<title><![CDATA[Various Specification Corrugated Steel Pipe Culverts with Rich Stock]]></title><link><![CDATA[https://jean2023.en.ec21.com/Various_Specification_Corrugated_Steel_Pipe--11767282_11820292.html]]></link><description><![CDATA[certification, becoming the industry leader3. Improve the quality management system Raw materials into the plant sampling, do tensile strength testing, thickness testing. Every aspect of the producti]]></description><pubDate><![CDATA[20230715]]></pubDate></item>
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<title><![CDATA[Incoloy 825 Inconel 600 718 Monel Fitting Flange Pipe Tube]]></title><link><![CDATA[https://lindasun00.en.ec21.com/Incoloy_825_Inconel_600_718--2845141_2845227.html]]></link><description><![CDATA[certification according to EN10204/3.2
Butt Weld Fittings
Standard
ASTM / ASME A/SA 403 GR WP &quot;S&quot; / &quot;W&quot; / &quot; WX&quot; 
ASTM A860/ A 860M WPHY42, WPHY52, WPHY60, WPHY65, WPHY70
ASTM/ ASME S/A234/ A 234M WPB]]></description><pubDate><![CDATA[20231106]]></pubDate></item>
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<title><![CDATA[Honed Cylinder Tube of Material SAE 4140 for High Strength Requirements]]></title><link><![CDATA[https://honedtubing.en.ec21.com/Honed_Cylinder_Tube_of_Material--11537181_11658468.html]]></link><description><![CDATA[as honed tubing.
Place of Origin: Wuxi, China
Brand: SKYLINE
Certificate: ISO9001:2015 
As a professional hydraulic cylinder barrel manufacturer and supplier, Skyline has been supplying and exporting]]></description><pubDate><![CDATA[20221019]]></pubDate></item>
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<title><![CDATA[Polyethylene Coating Pipe]]></title><link><![CDATA[https://samkun.en.ec21.com/Polyethylene_Coating_Pipe--6933502_6933506.html]]></link><description><![CDATA[As the below table indicates, there is no rust in PE Coating for test of spraying salt water (30days, 720hours).
SIMPLE CONSTRUCTION Construction is easy and simple, because pipes are connected by bo]]></description><pubDate><![CDATA[20130806]]></pubDate></item>

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