1. Various of type, blanks or polished carbide roll rings 2. Best price and satifactory service 3. Qualityguarntee 1.Various type , blanks and polished( precision machined) roll rings.2. Grade: YG15, YG20, YG8 YN15, YN20, YN93. Packing method: First in foam , then in paper cartons and the last in wooden cases. tungsten carbide rolls