Spiral shaped, double-submerged arc welding pipe production line (spiral welding pipe mill) is the company's most important products. After many years of exploration and constantly improved, the Spiral welding pipe equipment as well as its technical level are already in a leading position in our country, So our company is the most reliable, loyal partner and friend of steel pipe manufacture enterprise. In the recent we designed a leading domestic high-grade X80 of the Φ 406mm ~ Φ 1422mm double spiral submerged arc welding pipe mill for YangZhou TongYa pipe Co., Ltd... The spiral welding pipe mill products designed, manufactured by Our company have been diversified and serialization. From the forming process, it is divided into two types: External control molding and internal control molding. Unit's production process is divided into such types: Loop storage pit with welding materials or the backward swing type machine unit and the forward swing type short machine unit that are continuously producted in the form of Flying welding tractor. The diameter range of steel pipe produced from Φ 219mm to Φ 2800mm in the any size of any specifications. Products can satisfy standards of API-5L, GB9711.1, GB9711.2.
