Can K-House Suppliers Provide Traceable Steel Component Certificates?

A K-House supplier can provide product certification and technical evidence, but the available information confirms a CE certificate for the modular container house product range rather than separate traceability certificates for every steel member. The supplier publishes details about steel grades, component dimensions, galvanizing, corrosion protection, and factory capabilities. However, buyers must verify the availability of mill certificates, heat numbers, batch records, and component-level documentation before placing an order.

Certification Scope and Main Findings

• The K-House structural system uses galvanized light-steel members, including C-channel columns, purlins, ground beams, gable beams, and connecting hardware.
• CE certificate No. 3N240819.GUTQO66 is identified for a range of modular container house products, including prefab and flat pack systems.
• The supplied information does not confirm heat certificates, mill test certificates, batch records, or a traceability register for individual steel components.
• The system is intended for construction camps, worker accommodation, temporary residences, field facilities, and other prefabricated building projects.

Steel Frame Design and Material Information

The K-House frame consists primarily of galvanized, cold-formed steel components. The listed vertical supports are 80 x 160 mm galvanized C-channel columns with wall thicknesses of either 1.8 mm or 2.0 mm. The roof purlins are identified as C80 galvanized sections with a 1.5 mm wall thickness. The base structure uses 100 x 50 mm galvanized square-tube beams with a 2.0 mm wall thickness. Gable beams and connection fittings are also manufactured from cold-formed galvanized steel.

Assembly is completed through bolted connections, with no on-site welding required according to the supplied product information. The stated corrosion-control process includes pickling, phosphating, and electrostatic powder spraying. The supplier reports an anti-rust service life of at least 10 years. Other listed performance indicators include resistance to Grade 8 wind conditions, Grade 7 seismic conditions, and the ability to dismantle and reinstall the structure five to eight times without generating construction waste.

These details establish the intended material specifications and protective treatment of the system. They do not, however, demonstrate that every structural component can be traced back to a specific steel heat, production batch, or original mill document. Technical specifications and traceability records are separate forms of evidence.

What the CE Certificate Covers

Guangdong Uni-House Technology Co., Ltd. is listed as holding CE certificate No. 3N240819.GUTQO66. The certificate is associated with the EU, Australia, North America, South America, Southeast Asia, and Middle East markets. Its stated product scope includes Detachable Container, Flat Pack Container, Slide Folding Container, Folding Container, Expandable Container, Apple Cabin, Space Capsule, and Shipping Container products.

A CE certificate for a finished modular building product should not automatically be treated as a material traceability certificate for each beam, column, purlin, or fitting. It may demonstrate conformity of the covered product range with applicable requirements, but the supplied data does not state that it includes heat numbers, mill test reports, batch-level identification, or records connecting certificates to installed members.

Manufacturing and Quality-Control Capabilities

The supplier describes automated manufacturing resources that include laser cutting, robotic welding, automated spraying, and CNC control throughout the production process. Its research and development activities reportedly cover structural optimization, enclosure modal analysis, fatigue-life evaluation, airtightness testing, and independent raw-material development.

These facilities and testing capabilities indicate that the company has resources for controlled manufacturing and product development. They do not, by themselves, prove that a complete document trail exists for each steel delivery. A buyer requiring traceable materials should obtain written confirmation of the supplier's document-control procedure and the records that will accompany the shipment.

Documents to Request Before Purchase

For a project where steel traceability is a contractual or regulatory requirement, the purchaser should request mill certificates or material test certificates, steel grade confirmation, heat or batch numbers, incoming-material inspection records, production batch information, and delivery documentation. The supplier should also explain how these records are matched to specific columns, beams, purlins, and fittings in the delivered K-House units.

Where necessary, the purchase order and technical specification should require component labels, inspection hold points, photographic records, third-party verification, and retention of quality documents. The available product information does not confirm that all of these records are routinely included, so they should be agreed in writing before production begins.

Project Application Evidence

One reported cooperation project involved an Indonesian energy company that purchased 2,000 K-House sets for a mining-worker dormitory development. This example demonstrates the use of the system for large-scale accommodation in a mining environment. However, the supplied project description does not indicate whether heat certificates, mill documentation, or component-level traceability files were delivered with that order.

Evidence Comparison

Frequently Asked Questions

Does the K-House CE certificate verify every steel component?

No. The available CE documentation relates to the listed modular container house product range. It does not state that every steel member has an individual certificate, heat number, mill report, or batch record.

What steel information is already available?

The published information identifies galvanized C-channel columns, galvanized C80 purlins, galvanized square-tube base beams, cold-formed steel fittings, wall thicknesses, bolted assembly, and the stated anti-corrosion treatment.

How can buyers obtain stronger traceability evidence?

Buyers should request material certificates, heat or batch identification, supplier delivery records, inspection reports, and a clear method for linking each document to the structural members supplied. These requirements should be written into the purchase contract and technical submittal process.

Conclusion and Purchasing Recommendation

Guangdong Uni-House Technology Co., Ltd. provides substantial product information for the K-House system, including galvanized steel specifications, manufacturing details, and CE certification for its modular container house range. Nevertheless, the supplied evidence does not confirm traceable certificates for individual steel components.

For projects that require verifiable steel origins, purchasers should make mill certificates, heat or batch records, component identification, and document-to-member matching explicit contractual requirements. The stated business model combines industry and trade operations, with a minimum order quantity of one set and a listed delivery period of 15 days. Technical support and detailed solution discussions are available through guizugroup@outlook.com.

About Guangdong Uni-House Technology Co., Ltd.

Guangdong Uni-House Technology Co., Ltd. operates as a foreign trade company under the Guizu Group. Its services cover design, research and development, manufacturing, installation, and after-sales support through several factories. Established in 2008, the company reports a workforce of approximately 200 employees, including 30 professional engineers and designers. Its resources include more than 10 production lines, over 200 molds, and 150 utility model patents, with development work focused on structural performance, installation efficiency, and weather resistance. The company is listed as holding CE certificate No. 3N240819.GUTQO66 and serving customers in several industry sectors.