About Us
C-BOX Electronic Technology Co., Ltd. operates as one team with plants in Kunshan and Hefei — chassis and accessories from Kunshan, cabinets and accessories from Hefei, international sales from our Shanghai office.
Who We Are
C-BOX Kunshan Plant (est. 2016) makes chassis and accessories at a 6,000 m² plant. C-BOX Hefei Plant (Changfeng County, Anhui) makes cabinets and accessories at a 23,000 m² plant built on company-owned land — the state-issued land title covers 13,535 m² of industrial land held to 2071, and both the land and the plant buildings are owned outright, with second and third plant buildings now under construction. A Shanghai office in Huangpu District handles international sales and foreign trade.
Inside C-BOX
A quick look at C-BOX chassis in our workshop — and a walk through the factory floor.
C-BOX workshop — 19″ subrack assembly and inspection
Factory floor — machining & fabrication
Factory floor — production line
Factory floor — assembly & finishing
Subrack assembly line — real time
Large cabinet — door & interior fit-out
Sheet-metal line — coil decoiler, leveller & CNC punching
Export packing & documentation
Our Facilities
Kunshan (Jiangsu) for chassis and precision parts, Hefei (Anhui) for cabinets and enclosures — laser cutting, punching, bending, welding, machining and powder coating all in-house.




















Customer Audits
Export customers regularly visit and audit the Kunshan and Hefei plants — quality systems, traceability and production capability, checked on site before and between orders. A few impressions from recent audits (faces of customer personnel blurred for privacy).








































Our People
Skilled hands and long tenure are the backbone of consistent quality. Many of our people have been with C-BOX for over a decade — production, quality, engineering and support, working as one team across Kunshan and Hefei.





Capabilities
Bolstered by advanced equipment and a dedicated quality-inspection team.
Qualifications
Corporate Responsibility
Environment, quality and people — standards we hold ourselves to, whether or not they appear on an invoice.
Certificates
Scanned originals — certificate numbers can be verified with the issuing body.
Type-Test Reports
Full scans of third-party type-test reports on our chassis and cabinets, issued by accredited testing laboratories (REL Testing, STIEE Shanghai). Report numbers can be verified with the issuing body.
Each report opens the full scanned original in a new tab — first pages shown above; complete scans include test data, results and lab seals.
Capacity
| Product family | Annual capacity |
|---|---|
| Functional chassis (with backplanes, cooling, wiring) | 8,000 units |
| Standard sheet-metal chassis | 200,000 units |
| EMC profile cabinets (shielded 19″ racks) | 5,000 units |
| Sheet-metal & power distribution cabinets | 8,000 units |
Services
Industries We Serve
We supply enclosure systems and precision sheet-metal parts to customers in power & energy, rail transit, automotive, industrial automation, electronics and research — including listed companies, system integrators and research institutions in China and overseas.
Kunshan plant is 50 minutes from Shanghai by high-speed rail.