1. material: aluminum alloy 2. Application:plastic machinery, slitting machinery, printing and dyeing machinery, etc Aluminum alloy rollerMaterial: 6061-T5 or 6082--T6Application: ... 90,100,120,140,150,180, etc.Precision grade: 1. high-precision: circle run-out and concentricity are ... hard oxidation, TeflonType: coupling type and shaft type Aluminum alloy roller instead of stainless steel roller