ISO9001 certificated fabricated 13 steps welded metal single stair stringer

ISO9001 certificated fabricated 13 steps welded metal single stair stringer ProductnameFabricated 13 steps welded metal single stringer stairMaterialMild steel,stainless steel ,aluminum etcGradeSS400,S235JR,A36,Q235BQ345BQ46045#304316Certification:ISOqualitysystem,ChineseGB50221-2001Types of steel staircases Straight stairs,spiral stairs,curved stairs,fire escape stairs,access stairs,stainless stairs,Dog let stairs,U shape stairsWeldingTechnology:
Singlelevelbuttwelding,filletweldingbyelectricarcwelding,andGasshieldedwelding.WeldingTestingUltrasonicTesting,X-rayTestingPacking
Woodencase,steelpalletorotherseaworthypackageInspection100%dimensioninspectionandvisualinspection,,gastighttestbeforedelivery.ManufacturingTechnology
Drilling,Cutting,Assembling,Welding,Rectification,TestingetcApplicationIndoor and outdoor Qingdao Jiahexin Steel Co.,LTD has over 20 years of experience supplying customized machinery parts to many world famous manufacturers or mechanical parts trading agents. Our specialty is in structural metal fabrications, casting, forging, and CNC-machining. Our products cover the fields of construction machinery, power systems, material handling and transportation machinery, metallurgical equipment, mining machinery, chemical engineering machinery,and etc.


Material grade and performance of steelCarbonstructuralsteel:Q235,Q345,etc.High-strengthlow-alloystructuralsteelHighqualitycarbonstructuralsteelandalloystructuralsteelSpecialpurposesteel
Quality Standard
1.Certification:ISO9001:2000,SGSStandard
2.Codefordesignofsteelstructure:GB50017-2003
3.Technicalcodeofcold-formedthin-wallsteelstructure:GB50018-2002
4.Loadcodeforthedesignofbuildingstructures.GB50009-2006
5.Constructionqualityacceptanceofsteel:GB50205-2001
6.Technicalspecificationfor steelstructurebuilding:JGJ81-2002
7.TechnicalspecificationforsteelStructuresoftallbuildings:(JGJ99-98)
8.Specificationsforprocessingofsteelstructure:DBJ08-216-1995
9.Specificationsfordesignandconstructionofsteelpanel:YBJ216-88
The reason for choose each metal
Workshoppre-install.
Professionalon-siteguidance
Ensuretheproductquality.
Timelyserviceandprogress
Productionaccordingweldingrulesa=0.7xthicknessofweb
Continuousweldingonbothsidesofeachpieces
Markeverybeamonthebottomplateforbeingsawafterbeinggalvanized
Sendpicturestothebuyerbymailduringproductsbeingprocessed
Wehave17yearsexperienceofdesigningandproducingsteelstructurebuilding
LocatingintheShanghai,onlyneed1hourbycar,thelandtransportcostcheaper
Ourengineerswith20yearssteelstructuredesignexperience

1. What kind of company you are?
We are steel structure building Manufacturer located in Qingdao China, We were gaining good reputation among our customers for our professional, warm and thoughtful service. Because we know that a long terms business based on the quality control, price, packing, delivery time etc.
2. Does your company is a factory or trade company?
We are factory, so you will enjoy the best price and competitive price.
3. Whats the quality assurance you provided and how do you control quality?
Established a procedure to check products at all stages of the manufacturing process - raw materials, in process materials, validated or tested materials, finished goods, etc.
SGS, BV and other testing are available for us.We could deal with you by Trade Assurance via Alibaba.
4. Can you offer designing service?
Yes. We could design full solution drawings as per your requirments. They use software: Auto CAD,PKPM, MTS, 3D3S, Tarch, Tekla Structures(Xsteel)V12.0.etc.
5. Do you offer guiding installation on site overseas?
Yes, usually we will send you the detailed installation drawing, if you need, we can provide the service of installation, supervision and training by extra. We can send our professional technical engineer to supervise installation on site overseas.