Rentai steel Focus on steel products for about 10 years, but they have deal with Ductile iron pipes for more than 10 year, They have the general manager Mr Sunny who has been working in ductile iron pipe factory for 10 years, He got much experience for exporting ductile iron pipes. Now Rentai steel has become the agent of most of the China ductile iron pipes factory, and keep servicing all customer all over the world with their good quality , competitive price and best services.