it is reported that there is  contract prices over 4,000 yuan/ton.After some brands corporations of pig iron  offer high price, there is a small amount of  transaction.The transaction price of pig iron was 3850-3950 last week, which  indicates the pig iron prices will continue upward. Influenced by the steel price increasing,the price of cast iron and ductile iron still shock and goes up by prices  50-100 yuan/ton, the mainstream price of the current domestic of pig iron is in the 3750-3850 yuan / ton, ductile iron price 3850-3950 yuan / ton, and the brand  generally offers  more than mark of 4000 yuan/ton and the transaction price closes to 4000 yuan/ton level.