Tianjin Tianfeng Steel Pipe Co., Ltd. is a large enterprise in producing various steel tubes, such as square pipes, rectangular steel tubes and specially shaped pipes. We are specialized in ERW steel pipes, spiral submerged arc-welded steel pipes and a variety of hot rolling stripes. Our products cover major domestic and foreign markets. We have advanced technology, fine equipment, strong technical force, and excellent after sales service, which make us gain the acceptance and high praise. We are sincerely cooperating with customers at home and abroad.Our main products are square pipes,...