Our company specially product a variety of cast pipes, pipe fittings, downcomers ect. The material includes grey cast iron No. 200-40, No. 250-70, No. 300-54 ect., and the extensible cast iron No. 400-18, No. 450-12, No. 500-3 ect. We have complete inspection means and possess of ISO9001-2000 certificate and the USA UPC certificate. The products have been exported to the Europe, the United State and other countries and could be widely trusted by the customers.