Roll Mill Design Center Chelmsford. leon mill roll china co.,ltd,leon roll china is a manufacture from china,localed in changzhou jiangsu, near shanghai and baogang steel,we are a casting and machining foundry who can produce cast iron roll.steel rolls.cold rolls.roller rings,cast forged mill roll metallurgy roll for roll mill. the size from dia 220mm to 1200mm.rollform design software,roll ...