Tianjin Seiko Petroleum Pipe Fittings Co., Ltd., established on 2006-04-19, The business scope includes oil special pipe couplings and pipeline pipe couplings,Drilling tools and accessories,Drilling equipment and its accessories,tubing,casing,Line pipe,Production of metal products,processing,Sales,Machining,metallic material,Wholesale of seamless pipes and related accessories,retail,import and export(The above relates to quota license management,Commodities managed by special regulations shall be handled in accordance with relevant state regulations)***(Items subject to approval by law,Business activities can only be carried out after approval by relevant departments)