ZSJH
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Logistics buildings need dock openings, clear traffic routes, rack zones and service penetrations. The structural steel package must reflect how these interfaces affect columns, beams, bracing and connection sets. ZSJH fabricates custom members and connections for the approved building grid and functional zones.

1. Rack and equipment loads built in. Rack zones and process equipment loads are coordinated into the frame from the early stage.
2. Dock-opening coordination. Headhouse posts, brackets and mezzanine steel around dock doors are detailed to approved openings.
3. Column grid and functional zones. Members and bracing are matched to the approved grid, clear span and operational routes.
4. Drawings-first fabrication. Every member is produced to approved drawings and revision; structural design and detailing available on request.
5. Quality control and documentation. Weld details, tolerances and surface protection tracked and documented per project.
6. One-window export service. Packing, marking, shipping documents and delivery scope handled to your destination.
The following are typical options and ranges. Actual specifications are subject to approved drawings and project requirements.
| Item | Typical Range / Options | Notes |
|---|---|---|
| Component Types | Columns, beams, roof trusses/rafters, bracing, mezzanine/floor beams, loading bay reinforcement and connection components | Customized frame packages to suit the column grid |
| Common Steel Grades | Q355B (GB/T 1591-2018); ASTM A36, A572 Grade 50 or A992; EN S275 or S355 | Selected according to project design requirements |
| Plate Thickness | Typically 6–80 mm; heavy components fabricated to drawing requirements | Subject to approved drawings |
| Welding Requirements | AWS D1.1, ISO 3834 welding quality requirements or GB 50661, as specified | Traceable welder qualification records |
| Fabrication Tolerances | ISO 13920 or applicable tolerances under GB 50205-2020, as specified | Subject to drawing requirements |
| Surface Treatment | Abrasive blast cleaning to Sa 2½ (ISO 8501-1), followed by primer and topcoat; or hot-dip galvanizing to ISO 1461 | Selected according to project corrosion protection requirements |
| Individual Component Weight and Dimensions | Determined by project requirements and fabrication, lifting and transport constraints | Sectional delivery with designed splices where required |
| Inspection | Dimensional and weld inspection; specified non-destructive testing (UT, MT or RT) and third-party inspection | According to project specifications |
Typical applications include distribution centers, freight handling buildings and logistics parks.


Per project: mill test certificates (MTC); welding records and welder qualifications; dimensional/tolerance inspection records; coating records where specified; packing list with component marks and shipping documents.

ZSJH supplies fabricated structural steel members as loose or staged shipments matched to on-site erection, confirmed against approved drawings and quotation.
Members are marked, protected and packed for sea or road transport; oversized members split and staged to match erection; export documents support destination customs clearance.
Question | Answer |
Do you fabricate only to drawings, or also provide design? | We fabricate to your drawings and can provide structural design and detailing, depending on how complete your drawings are. |
Can you account for rack and equipment loads? | Yes — rack zones and process equipment loads are coordinated into the frame from the early stage. |
Can you integrate dock openings? | Yes — headhouse posts, brackets and mezzanine steel around dock doors are detailed to approved openings. |
Can you export to our country? | Yes, as break-bulk or container cargo, with documents for destination customs clearance. |
What documents do you provide? | Mill test certificates, inspection records, packing lists and shipping documents; third-party inspection per project. |
How do you ensure quality? | We inspect against the applicable welding code, tolerances and surface-preparation requirements per project. |
Send ZSJH your project location, drawings or BOM, building grid, clear span and height, dock locations, rack and equipment loads, member schedule, openings, package boundaries, quantities, finish, inspection scope, delivery destination and target date. If drawings are incomplete, ask about structural design, calculations and detailing support.