
Fabricating pressure equipment and steel in Jiangxi since 2003.
Pressure vessels, storage tanks, SF double-wall tanks, steel structures and skid-mounted units, built and tested on one 133,000 m² site in Jinxian, Nanchang.

One company, from plateto installation.
Jiangxi Wanlong Industrial Co., Ltd. was founded in 2003 in Jinxian County, Nanchang. It started in steel structures and storage tanks and grew into special-equipment manufacturing and installation: pressure vessels, tanks, space frames, pressure piping and general contracting for petrochemical, building and M&E works.
Today the plant covers 133,000 m², with a 30,000 m² vessel workshop and 50,000 t of annual capacity. 180 people work here, 45 of them engineers and technicians.
Service creates value. Quality comes from details.
- Established
- 2003
- Site
- 133,000m²
- Registered capital
- 101.8M RMB
- People
- 18045 engineers
Four lines of work,one quality system.
Every product line runs under the same ISO 9001, ISO 14001 and ISO 45001 system, with our own NDT room and test bay.

Pressure equipment
Licence TS2236612-2027 · Class DReaction, heat-exchange, separation and storage vessels to GB/T 150.
Learn more
Storage & SF tanks
Shop-built · field-erected · UL 1746Carbon and stainless tanks, anaerobic digesters and SF double-wall fuel tanks.
Learn more
Steel structures
Q235B / Q355B · GB 50205Canopies, pipe racks, platforms, space frames and built-up members.
Learn more
Installation & contracting
GC2 piping · Grade 2 contractingSite erection, piping installation and petrochemical, building and M&E contracting.
Learn moreInside the plant.
Cutting, rolling, welding, testing and coating lines in the same workshops, with overhead cranes up to 50 t.
Manufacturing capacity





Licences and certificates.
Numbers, scope and validity, so your inspector can check them before the first call.

| Pressure vessel manufacture | TS2236612-2027 | Fixed pressure vessels, Class D (medium & low pressure) | to 2027-08-27 |
| Pressure piping installation | TS3836019-2027 | GC2 industrial piping | to 2027-04-14 |
| Industrial product licence | XK12-002-01012 | Steel tank bodies for hazardous chemicals | to 2027-11-17 |
| ISO 9001 · 14001 · 45001 | 01725Q10433R2M | Vessels, SF tanks, skids, steel structures, piping | to 2028-06-17 |
| UL 1746 | 20161115-MH61687 | Jacketed underground tanks for flammable liquids | issued 2016-11-15 |
| Construction contracting | D236A02207 | Petrochemical, building, M&E general contracting, Grade 2 | to 2030-02-14 |
| Explosion-proof installation | PCEC-2024-BC004 | Ex vapour-recovery units and instruments | to 2027-05 |
| EPEC supplier credit | 20240102063 | A+ rating, Sinopec EPEC procurement platform | from 2024-07 |
Certificate wall.
Click a certificate to open the full scan.
Send us the data sheet.
Tell us the medium, design pressure, temperature and quantity. An engineer replies with questions or a quotation.
- Sales contact
- Mr. Yu Jiakang
- WhatsApp / WeChat
- +86 183 1791 9067
- Factory
- No. 2666 Jinxian Avenue, High-tech Industrial Park, Jinxian Economic Development Zone, Nanchang, Jiangxi, China 331700











