Tolerances we put in writing.
Every Zhongbian mould is built from Q235B national-standard hot-rolled steel — panels 3–5 mm, back ribs in channel/flat steel, fully welded. Dimensional tolerance is held at ±0.5 mm, so units of the same batch are interchangeable on your yard.
Automatic welding, strict per-piece inspection and trial assembly before dispatch: a dimensional report ships with every set, and third-party inspection is welcomed.
| Item | Specification |
|---|---|
| Steel grade | Q235B hot-rolled, panel 3–5 mm |
| Back ribs | Channel / flat steel, fully welded |
| Welding | Automatic welding, full welds on ribs |
| Dimensional tolerance | ±0.5 mm |
| Reuse cycles | Standard 60–100 · heavy-duty 120+ |
| Warranty | 12-month factory warranty |
Three technical commitments.
The build standard behind every mould that leaves the workshop.
Innovative Custom Design
Pier, box girder, box culvert, wind tower or channel — every mould is engineered to the customer’s drawing, not adapted from a catalogue.
Stable Quality Control
Q235 steel plate, automatic welding and strict dimensional inspection on every unit — with a recorded dimensional report in the box.
High Precision
±0.5 mm dimensional tolerance; units of the same batch are interchangeable — blocks, segments and panels match without rework.
On the wall — and in the bid file.
ISO management systems, AAA credit certificates, personal honors and honor plaques — scans available with the quotation.


















Inspect us before the pour.
Ask for the dimensional report template, mill certificates or a trial-assembly video of your mould set.