Hebei Yuantong pipe professional production of diameter 219----3600*6---20 type double-sided submerged arc spiral pipe, thick wall welded steel pipe, steel pipe anticorrosion insulation. Self-produced steel pipe, the quality assurance, the maximum amplitude Rangli customers, welcome to come to talk about andrew. Contact person: Mr. Wang, Tel: 13633279107 Fax: 0317-3093696 0317-3092065 all the way
