Tianjin Changshengweiye Steel & Iron Commercial Co., Ltd. is located in Beichen of Tianjin. Our company is a branch of Zhonghua Group and specializes in producing seamless pipes and tubes with all sizes and a wide range of materials used in structure, petrifaction, boiler, power and steamer fields. "Professional management and plenty of stock" is our policy. We supply all kinds of seamless steel pipes, such as structure pipes, fluid pipes, boiler pipes, high pressure pipes, line pipes and chemical fertilizer pipes which fully comply with the international standards of ASTM/ASME, API, DIN and JIS. Our products are all manufactured by top 10 manufacturers in China, such as Bao Steel, Baotou Steel, Chengdu Steel, Anshan Steel, TPCO, Hongdu Steel, Hualingheng Steel and Pancheng Steel. We have established long-term and stable relationships with many famous international companies, such as Japanese JFE, SUMITOMO and NKK, German VALLOUREC and MANNESMANN and Italian BENTELER and TENARISDALMINE. Based on our superior quality products, competitive prices and professional service, we have set up good relationships with many customers from aboard successfully. We always develop new products to meet clients&＃039; changing requirements. We warmly welcome customers from all over the world to visit and cooperate with us. It is our great pleasure to serve you and we can make sure that you will find your satisfaction with us.