ArcelorMittal Ringmill (previously CFR) has produced tyres for over a century. Tyres meeting your most stringent requirements. Manufactured according to UIC, using standard or in-house developed steel. AMR has the in-house expertise and support from a global group. Capability: Out. diameter 600 up to 1,400 mm and 100 up to 600kg. Delivered black or machined according to drawing.