... 5.ISO9001:2000 We are supplying Chilled cast iron rolls for rubber industry,plastics industry,paper industry, and other industries.----- The ... , drilled, or assembled.----- The rolls can be supplied as casting, or as wholly machined ones,including turning,grinding,drilling.keyway ... free from porosity, sand hole, slag inclusion, or other casting defects. 4).When the roll is made by ordinary gravity ...