8 years fabricating for Baosteel, CSCEC and China Railway — that standard is now available for your project.
Steel structures for industrial, commercial and agricultural projects — warehouses and workshops, multi-storey frames, equipment structures and car showrooms. Light steel, heavy steel and space frames each run on their own line.
Portal frames: welded H-section columns and rafters, C and Z purlins, bracing and secondary steel.
Multi-storey frames, box columns, heavy H-sections, crane beams and equipment structures.
Bolt-ball space frames and pipe trusses for column-free roofs.
We supply the complete steel building — frame, cladding and accessories — under one contract, with one set of drawings and one packing list.
From a 174,670 m² livestock base to metro stations and heavy workshops. Where our role on a project is confirmed, it is stated.
A large livestock base built from repeated portal-frame houses, with solar panels on the roofs. Purlins and roof structure carry the PV dead load and wind uplift — a roof not designed for panels cannot simply take them later.
Read the case study →
Tunnel-ventilated broiler houses for CP Group, one of the world’s largest agri-food groups. The air runs the full length of each house, so every frame has to match the design section.
Before a tier-1 contractor buys from a fabricator, its engineers audit the plant: qualifications, equipment, welding, material traceability, coating and delivery. We passed those audits, proved ourselves on trial batches, and have fabricated for them for more than eight years.
Steel components for Hengli Shipbuilding (Dalian), Zhenxing plant workshops.
CRRC Songyuan New Energy Equipment Industrial Base.
Liaoning Cancer Hospital, Shenfu Campus, Phase 1.
The four buyersBaosteel Steel Structure belongs to China Baowu, the world’s largest steel producer. China State Construction, China Railway Construction and China Railway Group are all in the Fortune Global 500.
Qualifications, equipment, welding, traceability, coating and delivery checked on site.
Accuracy, weld quality and delivery proven on first pieces and small orders.
More than eight years of continuous work, and still ongoing.
Companies we have worked with — as project owners, through their main contractors, or as the mills that supply our plate.
Zhongwei Steel Structure (众维钢构) started in 2002 as a steel erection contractor. Eight years on building sites taught us what makes a building go up fast — and since 2010 we have fabricated with that in mind, in our own factory in Shenyang.
AAA corporate credit rating.
Company facts, contracts and certificates →
Every member follows the same route through the factory, and every key step leaves a record. You, or a third party you appoint, can watch any of them.
CNC flame and laser cutting (Han’s Laser, FIN CNC). Main parts are marked so they stay traceable to their plate.
Webs and flanges fitted on H-beam assembly machines, square and to drawing dimensions.
Main welds run on gantry SAW lines for steady, consistent penetration.
Stiffeners, end plates and connections, by welders qualified to EN ISO 9606-1.
Dimensions checked against the drawings; critical welds UT-tested before any paint goes on.
Surfaces blast-cleaned to Sa 2½, ready to take the primer.
Airless spray to your paint system, with dry film thickness measured and recorded. Hot-dip galvanizing on request.
Every member carries its erection mark; bundles are strapped on steel skids and loaded at our yard.
Production time — from deposit to ex-works, depending on tonnage and complexity.
For every order we can issue an inspection and test plan (ITP): what is checked, at which stage, against which criteria, and how it is recorded. Third-party inspection is welcome — SGS, Bureau Veritas, TÜV or your own inspector.
Mill certificates and incoming inspection of main materials and key components.
Material marking and traceability checked at cutting.
WPS, WPQR and welder qualifications confirmed before welding starts.
Cutting, forming, assembly and welding in progress.
Critical dimensions and fit-up; internal checks before box sections are closed.
Ultrasonic test results of the welds reviewed and accepted.
Surface preparation, pre-coating inspection and dry film thickness.
Final inspection before packing; certificate of conformity issued.
Acceptance criteria: GB 50205, EN 1090-2 and EN ISO 5817, or your project specification. Which welding documents to ask any fabricator for →
Operators check their own work, a full-time inspector checks it again, and the quality department signs the final inspection record before anything is packed.
Results for each weld tested.
Dry film thickness for each member checked.
Chemistry and mechanical tests of the plate, by heat number.
Slip factor of high-strength bolted joints, by an independent lab.
Every member by mark, section, length and quantity, in English and Chinese.
With every shipment
Steel structural components
Welding quality management
Welding procedure qualification, WPQR 9602 · 9603
Welder qualification
Quality management
Environmental management
Occupational health and safety
Corporate credit rating
Issued to Shenyang Zhongwei Heavy Industry Steel Structure Engineering Co., Ltd., the manufacturing company behind Zhongwei Steel Structure, and to its welders. Look up the ISO certificates at www.cnca.gov.cn. Full copies of every certificate on request. What to check on each welding document →
Before you commit anything — a deposit, a date, a promise to your own client.
You don’t need finished drawings to start. Dimensions and what the building is for are enough for a price range within 24 hours.
Our 15-person engineering team, led by a Grade-1 registered structural engineer, issues English calculations and drawings to American (ASCE 7) or European codes — sized for your site’s wind, snow and seismic loads, for your licensed engineer to review and seal.
Quotation valid 7 days. Once the deposit is received, the price is locked for 3 months. Steel moves. Your budget doesn’t have to.
Third-party inspection welcome before the goods leave the factory — your inspector, your checklist, our floor.
24h
Send drawings, a sketch, or just size, location and use.
3–5days
Layout, frame type and steel weight, with an itemized quotation — agreed before any deposit.
10–20days
Full shop and erection drawings for fabrication.
15–60days
From deposit to ex-works, depending on tonnage.
Muy buena calidad y, sobre todo, muy buen trato, y siempre aconsejado por los ingenieros. Encantado y dispuesto a repetir. Gracias.
Very good quality and, above all, very good service — always advised by the engineers. Delighted and ready to do it again. Thank you.
Client in Spain · steel building · name withheld
Steel structures for industrial, commercial and agricultural projects — warehouses and workshops, multi-storey frames, equipment structures and car showrooms. Light steel, heavy steel and space frames each run on their own line, and roof and wall cladding and floor decking can be supplied with the frame under the same contract.
Our 50,000 m² factory is at 2 Zhenxing Road, Shenyang Coastal Economic Zone, Liaoning, China. Finished steel goes 350 km by road to Dalian Port. We quote EXW, FOB Dalian or CIF your port.
You get a price range within 24 hours. Scheme drawings with an itemized quotation take 3–5 days and are agreed before any deposit. Construction drawings take 10–20 days, and production takes 15–60 days from deposit to ex-works, depending on tonnage and complexity.
An EN 1090-1 certificate for steel structural components, which EU rules require before structural steel can carry CE marking; EN ISO 3834-2 for welding quality (No. SC-PSC-3834-1103); and ISO 9001, ISO 14001 and ISO 45001. Our welders hold EN ISO 9606-1 qualifications. You can look up the ISO certificates at www.cnca.gov.cn.
Yes. Our 15-person engineering team, led by a Grade-1 registered structural engineer, issues English calculations and drawings to American (ASCE 7) or European codes, sized for your site’s wind, snow and seismic loads, for your licensed engineer to review and seal.
Yes. We can issue an inspection and test plan (ITP) with four hold points and three witness points. Third-party inspection is welcome — SGS, Bureau Veritas, TÜV or your own inspector.
Australia, the United Arab Emirates, Russia, Argentina, Spain and Germany.
Quotations are valid for 7 days. Once the deposit is received, the price is locked for 3 months.
No. Several companies in and around Shenyang use similar English names. We are Zhongwei Steel Structure (众维钢构); our manufacturing company is Shenyang Zhongwei Heavy Industry Steel Structure Engineering Co., Ltd. (沈阳众维重工钢结构工程有限公司), and our factory is at 2 Zhenxing Road, Shenyang Coastal Economic Zone. Our logo is the green-and-blue circle at the top of this page. If in doubt, message Simon on WhatsApp +852 9624 2075 before you share drawings or pay a deposit.
Plain answers to the questions buyers ask before they order structural steel from China.
Send your drawings, a sketch, or just the size of the building you have in mind. I’ll come back with the questions an engineer would ask — then a price you can hold for 3 months.