Dezhou Dadong Machinery Co., Ltd. was set up in 1997. We are a professional company that produces and sells pipe making equipment and pipe fittings for percolation, ventilation, dust removal, environment protection, and building industries. Our company is located in the Xinhua Industrial Park, covering more than four thousand square meters. We have more than 12 sets of metal processing equipment and numerical control EDM equipment, and have the ability of manufacturing special equipment. Spiral metal duct machines are the main products of our company, and through continuous innovation and improvement, some devices have gained the national patent. In recent years, our machines have been used widely in ventilation, transportation, construction and other industries. Especially, DPCS-2-2000 spiral duct machine can coil 2mm thick metal plates, formed tubes have high strength and good gas tightness. They are used in mine ventilation, gas drainage and dedusting. Our products are deeply welcomed by customers from all over the world. In addition, we also have flat oval duct machine, round elbow making machine, angle iron winding machine, Prestressed metal spiral tube machines, combined punching and shearing machine, and plasma cutting machine.