- Trademark: HAOKUN
- Origin: China
- Specification: Dia 219mm-3000mm
2. After many years of exploration and constant improvement, our pipe welding techniques, equipment and technologies already take the leading position in the country. Our company has been the most reliable and royal partners and friends of pipe the manufacturing firms.
3. Very recently, we signed a contract of double-submerged arc spiral welding pipe mill with domestically leading high iron grade up to X80Φ 406mm to Φ 1422mm, with Yangzhou Tongya Pipe Co., Ltd. The Spiral Welding Pipe Mills designed and manufactured by our company have formed a very diversified and serialized product range.
4. From a forming process' s perspective, the products can be divided into: External Control Forming and Internal Control Forming. From a mill production process' s perspective, they can be divided into: Looping Pit Stored Welding Material, or Backward Swing Machine Unit and Forward Swing Short Machine Unit in Welding Tractor style with continuous production capability. Diameter range of final pipe line products could cover anything between Φ 219mm andΦ 2800mm. Our products meet API-5L, GB9711.1, GB9711.2 Standards.
5. Our company also assists pipe line manufacturing firms in layout, planning and design of products and manufacturing process. And we also supply complete stes of equipment for spiral welding pipes production.