| Part No. | Material | Inner Ring Diameter(mm) | Outer Ring Diameter(mm) | Outer Ring Thickness(mm) | Center Thickness(mm) |
| K03-270T(T27) | Natural Rubber | / | 27.0±0.1 | 2.8±0.2 | 0.8±0.2 |
| K03-270Y(Y27) | Isoprene Rubber | ||||
| K03-290T(T29) | Natural Rubber | 22.2±0.1 | 29.8±0.1 | 2.8±0.2 | 0.8±0.2 |
| K03-290Y(Y29) | Isoprene Rubber |
Features: non-toxic, high temperature resistance, high elasticity, good anti-aging performance, large tensile ratio.
Packaging: The inner packaging is a double-layer sterile plastic bag, and the outer packaging is a corrugated cardboard box
Industry standard: YY/T0313-2014
