SSAW MILL(Φ 219mm-Φ 3500mm) Spiral shaped, double-submerged arc welding pipe production lines (Spiral Weld Pipe Mills Φ 219mm-Φ 3500mm )are the most important products of the HAOKUN company. After many years of exploration and constant improvement, our pipe welding techniques, equipment and technologies have been the leading position of the dometic industry. Our company has been the most reliable and loyal partners and friends of pipe the manufacturing firms. Very recently, we signed a contract of double-submerged arc spiral welding pipe mill with domestically leading high iron grade up to X80, Φ 406mm-Φ 1422mm, with Yangzhou
