... 5.10-15kg testing We are supplying Chilled cast iron rolls for rubber industry,plastics industry,paper industry, ... rolls are made of special cast iron. The working surface of the roll is chill cast,forming a very ... thread taping.etc. The working surface of the roll can be ground cylindrical or crowned.We are making ... force, so it has the high density, white iron uniform layer and there is not any defect ...