Tianjin Rainbow Steel Group is a professional and international steel pipe manufacturer and supplier in China,We are specialized in producing high frequency welded steel pipes, galvanized steel pipes, ERW steel pipes,Hot rolled angle steel, GCOE square/rectangular steel pipe. Our manufacture equipment includes 5 steel pipe product lines, we can supply 350 thousand tons per year. We hold the newest machine, the most advanced manufacturing skills, and a strict quality control system with a complete set of updated devices for testing and inspection from raw material outsourcing to cargo delivery. We got the certificate of BV and ISO9001:2000. Our products can meet ASTM DIN JIS GB BS standards. Our products are apply to Petroleum, power, gas metallurgy, paper-making, chemical, medical equipment, aviation, boiler heat, exchange, shipbuilding, construction, etc. Our products spread all over the world, such as Germany, Italy, North America, South America, Southeast Asia, Japan, HongKong and Taiwan. Our aim is highest quality, competitive price, and best service to satisfy our customers, we will still keep on creating and innovation, build a best credibility and highest reputation company in the world. We welcome all the customers from all around the world to cooperate with us, develop and benefit both of us!