Product Cost of Grinding Media Increased Sharply

Since entering October, price of raw materials,ferro chrome in particular, increased greatly and keeps on going up. Comparing to the price  in September, the price of ferro chrome today nearly doubled. Although price rise of steel scrap is not as much as ferro chrome till now, but there is worry that it may upward continuously in the future. Sudden cost hike brought ball makers problem to execute long terms supply contracts at rigid price which were fixed before October of this year.