Wenchen Steel Structure is a Chongqing supplier focused on prefabricated structural steel components rather than finished small homes. Its public site describes design, fabrication and export of H-beams, columns, panels, purlins, roofing systems, bars and steel pipes for warehouses, workshops, commercial buildings and engineering projects.

It is useful for buyers sourcing commercial prefab building shells, steel frames or component packages, but residential modular buyers should verify whether enclosure, MEP, interior fit-out and installation are included.