COMPANY 01 · ABOUT
We make the steel that greenhouse frames are built from, and we say where our expertise stops.
A tube mill and profile line in Tianjin's Daqiuzhuang steel cluster, supplying greenhouse frames and frame material to growers, contractors and house suppliers. We are not a turnkey greenhouse company and we do not pretend to be.
What we actually do
- Roll and cut steel tube from Ø6 to 1,200 mm, wall 0.5 to 16 mm, single lengths up to 16 m.
- Form C and Z profiles and gutters for roofs and drainage.
- Bend arches to a radius, punch to a pattern, and weld where a joint needs to be a joint.
- Assemble frame packages: cut, bent, punched, bundled and marked for a specific house.
- Quote, document and export, with the mill and coating certificates that go with the steel.
What we do not do
- We do not design structures or issue design certificates.
- We do not supply glass, glazing systems, climate control, irrigation or growing systems.
- We do not install. We supply drawings, a sequence and support.
- We do not claim a certificate we do not hold, and we do not describe a lapsed certificate as current.
Why the “what we do not do” list is on the about page
Because the alternative is a buyer finding out at the port. A supplier whose scope is clear is easier to buy from, even when the scope is narrower.
Where we sit in the chain
| Link | Who | Ours? |
|---|---|---|
| Steel mill / coil | Upstream mill | No — we buy coil |
| Tube and profile forming | Pufeng | Yes |
| Galvanising | Accredited galvaniser | Managed by us |
| Frame fabrication | Pufeng | Yes |
| Structural design | Your engineer | No |
| House assembly | Your contractor | No |
| Export and documents | XinYonSen | Yes |
Location
Daqiuzhuang, Jinghai District, Tianjin — a steel tube cluster with coil, forming, galvanising and port access within a short distance. That is the practical reason a frame can be quoted, cut, dipped and loaded inside four weeks.
Read next
Pages that answer the question this page raises.
- 09.03FactoryGreenhouse frame factory in Daqiuzhuang, Jinghai, Tianjin: coil, forming, bending, punchin→
- 09.02Entity structureEntity structure: Tianjin XinYonSen Agricultural Technology as seller of record and Tianji→
- 04Product familiesGreenhouse steel product range: round tube Ø21–114 mm, oval arch tube 30×60–50×100, SHS/RH→
- 08.01Specify a frameHow to specify a greenhouse frame: span, bay, eaves, load case, covering, coating, fitting→
NEXT STEP
Verify us before you commit
Ask for the mill certificates, the packing photos or a video call on the line. We would rather answer those questions now than after the deposit.